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Finding the Fourth Proportional to 336.60, 502.71 and 282.48

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Solution

The fourth proportional to 336.60, 502.71 and 282.48 is: 421.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.60 : 502.71 = 282.48 : x
  2. Step 2: Convert to fraction form
    336.60/502.71 = 282.48/x
  3. Step 3: Cross multiply
    336.60x = 502.71 × 282.48
  4. Step 4: Simplify right side
    336.60x = 142,005.52
  5. Step 5: Solve for x
    x = 142,005.52/336.60
  6. Step 6: Final answer
    x = 421.88

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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.