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Finding the Fourth Proportional to 432.73, 596.83 and 285.31

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Solution

The fourth proportional to 432.73, 596.83 and 285.31 is: 393.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.73 : 596.83 = 285.31 : x
  2. Step 2: Convert to fraction form
    432.73/596.83 = 285.31/x
  3. Step 3: Cross multiply
    432.73x = 596.83 × 285.31
  4. Step 4: Simplify right side
    432.73x = 170,281.57
  5. Step 5: Solve for x
    x = 170,281.57/432.73
  6. Step 6: Final answer
    x = 393.51

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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.