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Finding the Fourth Proportional to 483.33, 724.39 and 239.32

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Solution

The fourth proportional to 483.33, 724.39 and 239.32 is: 358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    483.33 : 724.39 = 239.32 : x
  2. Step 2: Convert to fraction form
    483.33/724.39 = 239.32/x
  3. Step 3: Cross multiply
    483.33x = 724.39 × 239.32
  4. Step 4: Simplify right side
    483.33x = 173,362.67
  5. Step 5: Solve for x
    x = 173,362.67/483.33
  6. Step 6: Final answer
    x = 358.68

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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.