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Finding the Fourth Proportional to 285.27, 425.96 and 250.30

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Solution

The fourth proportional to 285.27, 425.96 and 250.30 is: 373.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.27 : 425.96 = 250.30 : x
  2. Step 2: Convert to fraction form
    285.27/425.96 = 250.30/x
  3. Step 3: Cross multiply
    285.27x = 425.96 × 250.30
  4. Step 4: Simplify right side
    285.27x = 106,617.79
  5. Step 5: Solve for x
    x = 106,617.79/285.27
  6. Step 6: Final answer
    x = 373.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.