Home / 279,381.12-385,545.96-152,057.64

Finding the Fourth Proportional to 279,381.12, 385,545.96 and 152,057.64

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Solution

The fourth proportional to 279,381.12, 385,545.96 and 152,057.64 is: 209,839.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,381.12 : 385,545.96 = 152,057.64 : x
  2. Step 2: Convert to fraction form
    279,381.12/385,545.96 = 152,057.64/x
  3. Step 3: Cross multiply
    279,381.12x = 385,545.96 × 152,057.64
  4. Step 4: Simplify right side
    279,381.12x = 58,625,208,789.13
  5. Step 5: Solve for x
    x = 58,625,208,789.13/279,381.12
  6. Step 6: Final answer
    x = 209,839.55

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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.