Home / 279,381.20-385,546.05-152,057.70

Finding the Fourth Proportional to 279,381.20, 385,546.05 and 152,057.70

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Solution

The fourth proportional to 279,381.20, 385,546.05 and 152,057.70 is: 209,839.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,381.20 : 385,546.05 = 152,057.70 : x
  2. Step 2: Convert to fraction form
    279,381.20/385,546.05 = 152,057.70/x
  3. Step 3: Cross multiply
    279,381.20x = 385,546.05 × 152,057.70
  4. Step 4: Simplify right side
    279,381.20x = 58,625,245,607.09
  5. Step 5: Solve for x
    x = 58,625,245,607.09/279,381.20
  6. Step 6: Final answer
    x = 209,839.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.