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Finding the Fourth Proportional to 528.37, 729.39 and 332.17

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Solution

The fourth proportional to 528.37, 729.39 and 332.17 is: 458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528.37 : 729.39 = 332.17 : x
  2. Step 2: Convert to fraction form
    528.37/729.39 = 332.17/x
  3. Step 3: Cross multiply
    528.37x = 729.39 × 332.17
  4. Step 4: Simplify right side
    528.37x = 242,281.48
  5. Step 5: Solve for x
    x = 242,281.48/528.37
  6. Step 6: Final answer
    x = 458.55

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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.