Home / 295,029.20-442,687.80-137,176.40

Finding the Fourth Proportional to 295,029.20, 442,687.80 and 137,176.40

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Solution

The fourth proportional to 295,029.20, 442,687.80 and 137,176.40 is: 205,831.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,029.20 : 442,687.80 = 137,176.40 : x
  2. Step 2: Convert to fraction form
    295,029.20/442,687.80 = 137,176.40/x
  3. Step 3: Cross multiply
    295,029.20x = 442,687.80 × 137,176.40
  4. Step 4: Simplify right side
    295,029.20x = 60,726,318,727.92
  5. Step 5: Solve for x
    x = 60,726,318,727.92/295,029.20
  6. Step 6: Final answer
    x = 205,831.55

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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.