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Finding the Fourth Proportional to 415.53, 572.76 and 332.51

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Solution

The fourth proportional to 415.53, 572.76 and 332.51 is: 458.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    415.53 : 572.76 = 332.51 : x
  2. Step 2: Convert to fraction form
    415.53/572.76 = 332.51/x
  3. Step 3: Cross multiply
    415.53x = 572.76 × 332.51
  4. Step 4: Simplify right side
    415.53x = 190,445.56
  5. Step 5: Solve for x
    x = 190,445.56/415.53
  6. Step 6: Final answer
    x = 458.32

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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.