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Finding the Fourth Proportional to 461.73, 637.00 and 284.65

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Solution

The fourth proportional to 461.73, 637.00 and 284.65 is: 392.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.73 : 637.00 = 284.65 : x
  2. Step 2: Convert to fraction form
    461.73/637.00 = 284.65/x
  3. Step 3: Cross multiply
    461.73x = 637.00 × 284.65
  4. Step 4: Simplify right side
    461.73x = 181,319.75
  5. Step 5: Solve for x
    x = 181,319.75/461.73
  6. Step 6: Final answer
    x = 392.69

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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.