Home / 423,743.40-635,542.20-157,366.80

Finding the Fourth Proportional to 423,743.40, 635,542.20 and 157,366.80

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Solution

The fourth proportional to 423,743.40, 635,542.20 and 157,366.80 is: 236,023.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,743.40 : 635,542.20 = 157,366.80 : x
  2. Step 2: Convert to fraction form
    423,743.40/635,542.20 = 157,366.80/x
  3. Step 3: Cross multiply
    423,743.40x = 635,542.20 × 157,366.80
  4. Step 4: Simplify right side
    423,743.40x = 100,013,242,278.96
  5. Step 5: Solve for x
    x = 100,013,242,278.96/423,743.40
  6. Step 6: Final answer
    x = 236,023.13

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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.