Home / 398,254.40-597,160.14-131,869.60

Finding the Fourth Proportional to 398,254.40, 597,160.14 and 131,869.60

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Solution

The fourth proportional to 398,254.40, 597,160.14 and 131,869.60 is: 197,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,254.40 : 597,160.14 = 131,869.60 : x
  2. Step 2: Convert to fraction form
    398,254.40/597,160.14 = 131,869.60/x
  3. Step 3: Cross multiply
    398,254.40x = 597,160.14 × 131,869.60
  4. Step 4: Simplify right side
    398,254.40x = 78,747,266,810.33
  5. Step 5: Solve for x
    x = 78,747,266,810.33/398,254.40
  6. Step 6: Final answer
    x = 197,731.07

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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.