Home / 308,499.20-425,725.88-172,531.60

Finding the Fourth Proportional to 308,499.20, 425,725.88 and 172,531.60

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Solution

The fourth proportional to 308,499.20, 425,725.88 and 172,531.60 is: 238,091.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,499.20 : 425,725.88 = 172,531.60 : x
  2. Step 2: Convert to fraction form
    308,499.20/425,725.88 = 172,531.60/x
  3. Step 3: Cross multiply
    308,499.20x = 425,725.88 × 172,531.60
  4. Step 4: Simplify right side
    308,499.20x = 73,451,167,237.81
  5. Step 5: Solve for x
    x = 73,451,167,237.81/308,499.20
  6. Step 6: Final answer
    x = 238,091.92

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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.