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Finding the Fourth Proportional to 510.66, 766.32 and 484.56

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Solution

The fourth proportional to 510.66, 766.32 and 484.56 is: 727.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.66 : 766.32 = 484.56 : x
  2. Step 2: Convert to fraction form
    510.66/766.32 = 484.56/x
  3. Step 3: Cross multiply
    510.66x = 766.32 × 484.56
  4. Step 4: Simplify right side
    510.66x = 371,328.02
  5. Step 5: Solve for x
    x = 371,328.02/510.66
  6. Step 6: Final answer
    x = 727.15

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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.