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Finding the Fourth Proportional to 473.10, 652.20 and 332.78

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Solution

The fourth proportional to 473.10, 652.20 and 332.78 is: 458.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    473.10 : 652.20 = 332.78 : x
  2. Step 2: Convert to fraction form
    473.10/652.20 = 332.78/x
  3. Step 3: Cross multiply
    473.10x = 652.20 × 332.78
  4. Step 4: Simplify right side
    473.10x = 217,039.12
  5. Step 5: Solve for x
    x = 217,039.12/473.10
  6. Step 6: Final answer
    x = 458.76

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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.