Home / 385,127.80-577,550.20-132,336.60

Finding the Fourth Proportional to 385,127.80, 577,550.20 and 132,336.60

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Solution

The fourth proportional to 385,127.80, 577,550.20 and 132,336.60 is: 198,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,127.80 : 577,550.20 = 132,336.60 : x
  2. Step 2: Convert to fraction form
    385,127.80/577,550.20 = 132,336.60/x
  3. Step 3: Cross multiply
    385,127.80x = 577,550.20 × 132,336.60
  4. Step 4: Simplify right side
    385,127.80x = 76,431,029,797.32
  5. Step 5: Solve for x
    x = 76,431,029,797.32/385,127.80
  6. Step 6: Final answer
    x = 198,456.28

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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.