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Finding the Fourth Proportional to 624.02, 935.49 and 239.02

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Solution

The fourth proportional to 624.02, 935.49 and 239.02 is: 358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.02 : 935.49 = 239.02 : x
  2. Step 2: Convert to fraction form
    624.02/935.49 = 239.02/x
  3. Step 3: Cross multiply
    624.02x = 935.49 × 239.02
  4. Step 4: Simplify right side
    624.02x = 223,600.82
  5. Step 5: Solve for x
    x = 223,600.82/624.02
  6. Step 6: Final answer
    x = 358.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.