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Finding the Fourth Proportional to 381,660.40, 572,490.60 and 224,066.80

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Solution

The fourth proportional to 381,660.40, 572,490.60 and 224,066.80 is: 336,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,660.40 : 572,490.60 = 224,066.80 : x
  2. Step 2: Convert to fraction form
    381,660.40/572,490.60 = 224,066.80/x
  3. Step 3: Cross multiply
    381,660.40x = 572,490.60 × 224,066.80
  4. Step 4: Simplify right side
    381,660.40x = 128,276,136,772.08
  5. Step 5: Solve for x
    x = 128,276,136,772.08/381,660.40
  6. Step 6: Final answer
    x = 336,100.20

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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.