Home / 423,738.20-635,607.30-157,565.72

Finding the Fourth Proportional to 423,738.20, 635,607.30 and 157,565.72

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Solution

The fourth proportional to 423,738.20, 635,607.30 and 157,565.72 is: 236,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,738.20 : 635,607.30 = 157,565.72 : x
  2. Step 2: Convert to fraction form
    423,738.20/635,607.30 = 157,565.72/x
  3. Step 3: Cross multiply
    423,738.20x = 635,607.30 × 157,565.72
  4. Step 4: Simplify right side
    423,738.20x = 100,149,918,683.72
  5. Step 5: Solve for x
    x = 100,149,918,683.72/423,738.20
  6. Step 6: Final answer
    x = 236,348.58

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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.