Home / 385,084.40-577,665.20-132,331.60

Finding the Fourth Proportional to 385,084.40, 577,665.20 and 132,331.60

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Solution

The fourth proportional to 385,084.40, 577,665.20 and 132,331.60 is: 198,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,084.40 : 577,665.20 = 132,331.60 : x
  2. Step 2: Convert to fraction form
    385,084.40/577,665.20 = 132,331.60/x
  3. Step 3: Cross multiply
    385,084.40x = 577,665.20 × 132,331.60
  4. Step 4: Simplify right side
    385,084.40x = 76,443,360,180.32
  5. Step 5: Solve for x
    x = 76,443,360,180.32/385,084.40
  6. Step 6: Final answer
    x = 198,510.66

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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.