Home / 192,006.40-288,355.20-139,475.20

Finding the Fourth Proportional to 192,006.40, 288,355.20 and 139,475.20

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Solution

The fourth proportional to 192,006.40, 288,355.20 and 139,475.20 is: 209,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,006.40 : 288,355.20 = 139,475.20 : x
  2. Step 2: Convert to fraction form
    192,006.40/288,355.20 = 139,475.20/x
  3. Step 3: Cross multiply
    192,006.40x = 288,355.20 × 139,475.20
  4. Step 4: Simplify right side
    192,006.40x = 40,218,399,191.04
  5. Step 5: Solve for x
    x = 40,218,399,191.04/192,006.40
  6. Step 6: Final answer
    x = 209,463.85

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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.