Home / 279,120.27-385,182.36-151,793.13

Finding the Fourth Proportional to 279,120.27, 385,182.36 and 151,793.13

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Solution

The fourth proportional to 279,120.27, 385,182.36 and 151,793.13 is: 209,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,120.27 : 385,182.36 = 151,793.13 : x
  2. Step 2: Convert to fraction form
    279,120.27/385,182.36 = 151,793.13/x
  3. Step 3: Cross multiply
    279,120.27x = 385,182.36 × 151,793.13
  4. Step 4: Simplify right side
    279,120.27x = 58,468,036,045.19
  5. Step 5: Solve for x
    x = 58,468,036,045.19/279,120.27
  6. Step 6: Final answer
    x = 209,472.55

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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.