Home / 257,966.20-386,949.30-194,980.60

Finding the Fourth Proportional to 257,966.20, 386,949.30 and 194,980.60

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Solution

The fourth proportional to 257,966.20, 386,949.30 and 194,980.60 is: 292,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,966.20 : 386,949.30 = 194,980.60 : x
  2. Step 2: Convert to fraction form
    257,966.20/386,949.30 = 194,980.60/x
  3. Step 3: Cross multiply
    257,966.20x = 386,949.30 × 194,980.60
  4. Step 4: Simplify right side
    257,966.20x = 75,447,606,683.58
  5. Step 5: Solve for x
    x = 75,447,606,683.58/257,966.20
  6. Step 6: Final answer
    x = 292,470.90

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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.