Home / 423,849.60-635,774.40-108,331.20

Finding the Fourth Proportional to 423,849.60, 635,774.40 and 108,331.20

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Solution

The fourth proportional to 423,849.60, 635,774.40 and 108,331.20 is: 162,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,849.60 : 635,774.40 = 108,331.20 : x
  2. Step 2: Convert to fraction form
    423,849.60/635,774.40 = 108,331.20/x
  3. Step 3: Cross multiply
    423,849.60x = 635,774.40 × 108,331.20
  4. Step 4: Simplify right side
    423,849.60x = 68,874,203,681.28
  5. Step 5: Solve for x
    x = 68,874,203,681.28/423,849.60
  6. Step 6: Final answer
    x = 162,496.80

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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.