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Finding the Fourth Proportional to 364.31, 502.80 and 240.16

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Solution

The fourth proportional to 364.31, 502.80 and 240.16 is: 331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    364.31 : 502.80 = 240.16 : x
  2. Step 2: Convert to fraction form
    364.31/502.80 = 240.16/x
  3. Step 3: Cross multiply
    364.31x = 502.80 × 240.16
  4. Step 4: Simplify right side
    364.31x = 120,752.45
  5. Step 5: Solve for x
    x = 120,752.45/364.31
  6. Step 6: Final answer
    x = 331.46

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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.