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Finding the Fourth Proportional to 624.02, 935.66 and 239.18

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Solution

The fourth proportional to 624.02, 935.66 and 239.18 is: 358.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    624.02 : 935.66 = 239.18 : x
  2. Step 2: Convert to fraction form
    624.02/935.66 = 239.18/x
  3. Step 3: Cross multiply
    624.02x = 935.66 × 239.18
  4. Step 4: Simplify right side
    624.02x = 223,791.16
  5. Step 5: Solve for x
    x = 223,791.16/624.02
  6. Step 6: Final answer
    x = 358.63

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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.