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Finding the Fourth Proportional to 511.10, 766.02 and 291.92

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Solution

The fourth proportional to 511.10, 766.02 and 291.92 is: 437.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.10 : 766.02 = 291.92 : x
  2. Step 2: Convert to fraction form
    511.10/766.02 = 291.92/x
  3. Step 3: Cross multiply
    511.10x = 766.02 × 291.92
  4. Step 4: Simplify right side
    511.10x = 223,612.73
  5. Step 5: Solve for x
    x = 223,612.73/511.10
  6. Step 6: Final answer
    x = 437.52

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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.