Home / 449,139.20-619,810.80-247,935.20

Finding the Fourth Proportional to 449,139.20, 619,810.80 and 247,935.20

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Solution

The fourth proportional to 449,139.20, 619,810.80 and 247,935.20 is: 342,149.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,139.20 : 619,810.80 = 247,935.20 : x
  2. Step 2: Convert to fraction form
    449,139.20/619,810.80 = 247,935.20/x
  3. Step 3: Cross multiply
    449,139.20x = 619,810.80 × 247,935.20
  4. Step 4: Simplify right side
    449,139.20x = 153,672,914,660.16
  5. Step 5: Solve for x
    x = 153,672,914,660.16/449,139.20
  6. Step 6: Final answer
    x = 342,149.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.