Home / 287,519.90-396,845.07-178,706.42

Finding the Fourth Proportional to 287,519.90, 396,845.07 and 178,706.42

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Solution

The fourth proportional to 287,519.90, 396,845.07 and 178,706.42 is: 246,656.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,519.90 : 396,845.07 = 178,706.42 : x
  2. Step 2: Convert to fraction form
    287,519.90/396,845.07 = 178,706.42/x
  3. Step 3: Cross multiply
    287,519.90x = 396,845.07 × 178,706.42
  4. Step 4: Simplify right side
    287,519.90x = 70,918,760,440.27
  5. Step 5: Solve for x
    x = 70,918,760,440.27/287,519.90
  6. Step 6: Final answer
    x = 246,656.88

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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.