Home / 215,517.72-323,445.12-149,423.40

Finding the Fourth Proportional to 215,517.72, 323,445.12 and 149,423.40

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Solution

The fourth proportional to 215,517.72, 323,445.12 and 149,423.40 is: 224,251.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,517.72 : 323,445.12 = 149,423.40 : x
  2. Step 2: Convert to fraction form
    215,517.72/323,445.12 = 149,423.40/x
  3. Step 3: Cross multiply
    215,517.72x = 323,445.12 × 149,423.40
  4. Step 4: Simplify right side
    215,517.72x = 48,330,269,543.81
  5. Step 5: Solve for x
    x = 48,330,269,543.81/215,517.72
  6. Step 6: Final answer
    x = 224,251.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.