Home / 247,337.28-371,033.16-78,818.40

Finding the Fourth Proportional to 247,337.28, 371,033.16 and 78,818.40

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Solution

The fourth proportional to 247,337.28, 371,033.16 and 78,818.40 is: 118,236.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,337.28 : 371,033.16 = 78,818.40 : x
  2. Step 2: Convert to fraction form
    247,337.28/371,033.16 = 78,818.40/x
  3. Step 3: Cross multiply
    247,337.28x = 371,033.16 × 78,818.40
  4. Step 4: Simplify right side
    247,337.28x = 29,244,240,018.14
  5. Step 5: Solve for x
    x = 29,244,240,018.14/247,337.28
  6. Step 6: Final answer
    x = 118,236.28

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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.