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Finding the Fourth Proportional to 399,304.60, 598,956.90 and 133,073.80

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Solution

The fourth proportional to 399,304.60, 598,956.90 and 133,073.80 is: 199,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,304.60 : 598,956.90 = 133,073.80 : x
  2. Step 2: Convert to fraction form
    399,304.60/598,956.90 = 133,073.80/x
  3. Step 3: Cross multiply
    399,304.60x = 598,956.90 × 133,073.80
  4. Step 4: Simplify right side
    399,304.60x = 79,705,470,719.22
  5. Step 5: Solve for x
    x = 79,705,470,719.22/399,304.60
  6. Step 6: Final answer
    x = 199,610.70

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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.