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Finding the Fourth Proportional to 519.40, 716.52 and 332.74

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Solution

The fourth proportional to 519.40, 716.52 and 332.74 is: 459.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    519.40 : 716.52 = 332.74 : x
  2. Step 2: Convert to fraction form
    519.40/716.52 = 332.74/x
  3. Step 3: Cross multiply
    519.40x = 716.52 × 332.74
  4. Step 4: Simplify right side
    519.40x = 238,414.86
  5. Step 5: Solve for x
    x = 238,414.86/519.40
  6. Step 6: Final answer
    x = 459.02

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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.