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Finding the Fourth Proportional to 743.01, 1,114.65 and 249.37

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Solution

The fourth proportional to 743.01, 1,114.65 and 249.37 is: 374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.01 : 1,114.65 = 249.37 : x
  2. Step 2: Convert to fraction form
    743.01/1,114.65 = 249.37/x
  3. Step 3: Cross multiply
    743.01x = 1,114.65 × 249.37
  4. Step 4: Simplify right side
    743.01x = 277,956.55
  5. Step 5: Solve for x
    x = 277,956.55/743.01
  6. Step 6: Final answer
    x = 374.10

Related Problems

Find fourth proportional to 371.50, 557.32 and 124.68
Half scale
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Double scale
Find fourth proportional to 744.01, 1,116.15 and 250.37
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.