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Finding the Fourth Proportional to 381,671.40, 572,507.10 and 224,077.80

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Solution

The fourth proportional to 381,671.40, 572,507.10 and 224,077.80 is: 336,116.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,671.40 : 572,507.10 = 224,077.80 : x
  2. Step 2: Convert to fraction form
    381,671.40/572,507.10 = 224,077.80/x
  3. Step 3: Cross multiply
    381,671.40x = 572,507.10 × 224,077.80
  4. Step 4: Simplify right side
    381,671.40x = 128,286,131,452.38
  5. Step 5: Solve for x
    x = 128,286,131,452.38/381,671.40
  6. Step 6: Final answer
    x = 336,116.70

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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.