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Finding the Fourth Proportional to 510.90, 766.10 and 237.19

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Solution

The fourth proportional to 510.90, 766.10 and 237.19 is: 355.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.90 : 766.10 = 237.19 : x
  2. Step 2: Convert to fraction form
    510.90/766.10 = 237.19/x
  3. Step 3: Cross multiply
    510.90x = 766.10 × 237.19
  4. Step 4: Simplify right side
    510.90x = 181,706.54
  5. Step 5: Solve for x
    x = 181,706.54/510.90
  6. Step 6: Final answer
    x = 355.66

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Double scale
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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.