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Finding the Fourth Proportional to 284.16, 424.34 and 251.04

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Solution

The fourth proportional to 284.16, 424.34 and 251.04 is: 374.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    284.16 : 424.34 = 251.04 : x
  2. Step 2: Convert to fraction form
    284.16/424.34 = 251.04/x
  3. Step 3: Cross multiply
    284.16x = 424.34 × 251.04
  4. Step 4: Simplify right side
    284.16x = 106,526.31
  5. Step 5: Solve for x
    x = 106,526.31/284.16
  6. Step 6: Final answer
    x = 374.88

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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.