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Finding the Fourth Proportional to 532.61, 735.01 and 322.79

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Solution

The fourth proportional to 532.61, 735.01 and 322.79 is: 445.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.61 : 735.01 = 322.79 : x
  2. Step 2: Convert to fraction form
    532.61/735.01 = 322.79/x
  3. Step 3: Cross multiply
    532.61x = 735.01 × 322.79
  4. Step 4: Simplify right side
    532.61x = 237,253.88
  5. Step 5: Solve for x
    x = 237,253.88/532.61
  6. Step 6: Final answer
    x = 445.46

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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.