Home / 258,336.32-387,654.24-108,564.80

Finding the Fourth Proportional to 258,336.32, 387,654.24 and 108,564.80

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Solution

The fourth proportional to 258,336.32, 387,654.24 and 108,564.80 is: 162,910.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,336.32 : 387,654.24 = 108,564.80 : x
  2. Step 2: Convert to fraction form
    258,336.32/387,654.24 = 108,564.80/x
  3. Step 3: Cross multiply
    258,336.32x = 387,654.24 × 108,564.80
  4. Step 4: Simplify right side
    258,336.32x = 42,085,605,034.75
  5. Step 5: Solve for x
    x = 42,085,605,034.75/258,336.32
  6. Step 6: Final answer
    x = 162,910.14

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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.