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Finding the Fourth Proportional to 508.66, 701.99 and 284.62

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Solution

The fourth proportional to 508.66, 701.99 and 284.62 is: 392.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508.66 : 701.99 = 284.62 : x
  2. Step 2: Convert to fraction form
    508.66/701.99 = 284.62/x
  3. Step 3: Cross multiply
    508.66x = 701.99 × 284.62
  4. Step 4: Simplify right side
    508.66x = 199,801.20
  5. Step 5: Solve for x
    x = 199,801.20/508.66
  6. Step 6: Final answer
    x = 392.80

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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.