Home / 247,966.20-371,949.30-129,673.80

Finding the Fourth Proportional to 247,966.20, 371,949.30 and 129,673.80

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Solution

The fourth proportional to 247,966.20, 371,949.30 and 129,673.80 is: 194,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,966.20 : 371,949.30 = 129,673.80 : x
  2. Step 2: Convert to fraction form
    247,966.20/371,949.30 = 129,673.80/x
  3. Step 3: Cross multiply
    247,966.20x = 371,949.30 × 129,673.80
  4. Step 4: Simplify right side
    247,966.20x = 48,232,079,138.34
  5. Step 5: Solve for x
    x = 48,232,079,138.34/247,966.20
  6. Step 6: Final answer
    x = 194,510.70

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1.5x scale

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.