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Finding the Fourth Proportional to 381,304.60, 571,956.90 and 293,003.80

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Solution

The fourth proportional to 381,304.60, 571,956.90 and 293,003.80 is: 439,505.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,304.60 : 571,956.90 = 293,003.80 : x
  2. Step 2: Convert to fraction form
    381,304.60/571,956.90 = 293,003.80/x
  3. Step 3: Cross multiply
    381,304.60x = 571,956.90 × 293,003.80
  4. Step 4: Simplify right side
    381,304.60x = 167,585,545,136.22
  5. Step 5: Solve for x
    x = 167,585,545,136.22/381,304.60
  6. Step 6: Final answer
    x = 439,505.70

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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.