Home / 367,790.40-551,685.60-131,140.80

Finding the Fourth Proportional to 367,790.40, 551,685.60 and 131,140.80

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Solution

The fourth proportional to 367,790.40, 551,685.60 and 131,140.80 is: 196,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,790.40 : 551,685.60 = 131,140.80 : x
  2. Step 2: Convert to fraction form
    367,790.40/551,685.60 = 131,140.80/x
  3. Step 3: Cross multiply
    367,790.40x = 551,685.60 × 131,140.80
  4. Step 4: Simplify right side
    367,790.40x = 72,348,490,932.48
  5. Step 5: Solve for x
    x = 72,348,490,932.48/367,790.40
  6. Step 6: Final answer
    x = 196,711.20

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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.