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Finding the Fourth Proportional to 504.39, 696.11 and 283.33

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Solution

The fourth proportional to 504.39, 696.11 and 283.33 is: 391.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.39 : 696.11 = 283.33 : x
  2. Step 2: Convert to fraction form
    504.39/696.11 = 283.33/x
  3. Step 3: Cross multiply
    504.39x = 696.11 × 283.33
  4. Step 4: Simplify right side
    504.39x = 197,228.85
  5. Step 5: Solve for x
    x = 197,228.85/504.39
  6. Step 6: Final answer
    x = 391.02

Related Problems

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Half scale
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Double scale
Find fourth proportional to 505.39, 697.49 and 284.33
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.