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Finding the Fourth Proportional to 379.04, 521.52 and 332.24

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Solution

The fourth proportional to 379.04, 521.52 and 332.24 is: 457.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    379.04 : 521.52 = 332.24 : x
  2. Step 2: Convert to fraction form
    379.04/521.52 = 332.24/x
  3. Step 3: Cross multiply
    379.04x = 521.52 × 332.24
  4. Step 4: Simplify right side
    379.04x = 173,269.80
  5. Step 5: Solve for x
    x = 173,269.80/379.04
  6. Step 6: Final answer
    x = 457.13

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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.