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Finding the Fourth Proportional to 743.02, 1,114.07 and 353.14

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Solution

The fourth proportional to 743.02, 1,114.07 and 353.14 is: 529.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    743.02 : 1,114.07 = 353.14 : x
  2. Step 2: Convert to fraction form
    743.02/1,114.07 = 353.14/x
  3. Step 3: Cross multiply
    743.02x = 1,114.07 × 353.14
  4. Step 4: Simplify right side
    743.02x = 393,422.68
  5. Step 5: Solve for x
    x = 393,422.68/743.02
  6. Step 6: Final answer
    x = 529.49

Related Problems

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Half scale
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Double scale
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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.