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Finding the Fourth Proportional to 424.97, 637.50 and 151.09

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Solution

The fourth proportional to 424.97, 637.50 and 151.09 is: 226.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    424.97 : 637.50 = 151.09 : x
  2. Step 2: Convert to fraction form
    424.97/637.50 = 151.09/x
  3. Step 3: Cross multiply
    424.97x = 637.50 × 151.09
  4. Step 4: Simplify right side
    424.97x = 96,315.93
  5. Step 5: Solve for x
    x = 96,315.93/424.97
  6. Step 6: Final answer
    x = 226.64

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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.