Home / 247,304.28-370,983.66-78,785.40

Finding the Fourth Proportional to 247,304.28, 370,983.66 and 78,785.40

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Solution

The fourth proportional to 247,304.28, 370,983.66 and 78,785.40 is: 118,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,304.28 : 370,983.66 = 78,785.40 : x
  2. Step 2: Convert to fraction form
    247,304.28/370,983.66 = 78,785.40/x
  3. Step 3: Cross multiply
    247,304.28x = 370,983.66 × 78,785.40
  4. Step 4: Simplify right side
    247,304.28x = 29,228,096,046.56
  5. Step 5: Solve for x
    x = 29,228,096,046.56/247,304.28
  6. Step 6: Final answer
    x = 118,186.78

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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.