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Finding the Fourth Proportional to 324,138.86, 447,334.08 and 180,926.90

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Solution

The fourth proportional to 324,138.86, 447,334.08 and 180,926.90 is: 249,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,138.86 : 447,334.08 = 180,926.90 : x
  2. Step 2: Convert to fraction form
    324,138.86/447,334.08 = 180,926.90/x
  3. Step 3: Cross multiply
    324,138.86x = 447,334.08 × 180,926.90
  4. Step 4: Simplify right side
    324,138.86x = 80,934,768,358.75
  5. Step 5: Solve for x
    x = 80,934,768,358.75/324,138.86
  6. Step 6: Final answer
    x = 249,691.65

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1.5x scale

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.