Home / 258,217.04-387,204.60-108,425.36

Finding the Fourth Proportional to 258,217.04, 387,204.60 and 108,425.36

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Solution

The fourth proportional to 258,217.04, 387,204.60 and 108,425.36 is: 162,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,217.04 : 387,204.60 = 108,425.36 : x
  2. Step 2: Convert to fraction form
    258,217.04/387,204.60 = 108,425.36/x
  3. Step 3: Cross multiply
    258,217.04x = 387,204.60 × 108,425.36
  4. Step 4: Simplify right side
    258,217.04x = 41,982,798,148.66
  5. Step 5: Solve for x
    x = 41,982,798,148.66/258,217.04
  6. Step 6: Final answer
    x = 162,587.25

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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.