Home / 279,731.40-386,033.76-152,406.96

Finding the Fourth Proportional to 279,731.40, 386,033.76 and 152,406.96

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Solution

The fourth proportional to 279,731.40, 386,033.76 and 152,406.96 is: 210,324.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,731.40 : 386,033.76 = 152,406.96 : x
  2. Step 2: Convert to fraction form
    279,731.40/386,033.76 = 152,406.96/x
  3. Step 3: Cross multiply
    279,731.40x = 386,033.76 × 152,406.96
  4. Step 4: Simplify right side
    279,731.40x = 58,834,231,818.97
  5. Step 5: Solve for x
    x = 58,834,231,818.97/279,731.40
  6. Step 6: Final answer
    x = 210,324.02

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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.