Home / 257,273.40-385,080.66-132,442.68

Finding the Fourth Proportional to 257,273.40, 385,080.66 and 132,442.68

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Solution

The fourth proportional to 257,273.40, 385,080.66 and 132,442.68 is: 198,237.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,273.40 : 385,080.66 = 132,442.68 : x
  2. Step 2: Convert to fraction form
    257,273.40/385,080.66 = 132,442.68/x
  3. Step 3: Cross multiply
    257,273.40x = 385,080.66 × 132,442.68
  4. Step 4: Simplify right side
    257,273.40x = 51,001,114,626.57
  5. Step 5: Solve for x
    x = 51,001,114,626.57/257,273.40
  6. Step 6: Final answer
    x = 198,237.03

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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.