Home / 258,314.90-386,781.15-164,311.70

Finding the Fourth Proportional to 258,314.90, 386,781.15 and 164,311.70

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Solution

The fourth proportional to 258,314.90, 386,781.15 and 164,311.70 is: 246,027.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,314.90 : 386,781.15 = 164,311.70 : x
  2. Step 2: Convert to fraction form
    258,314.90/386,781.15 = 164,311.70/x
  3. Step 3: Cross multiply
    258,314.90x = 386,781.15 × 164,311.70
  4. Step 4: Simplify right side
    258,314.90x = 63,552,668,284.46
  5. Step 5: Solve for x
    x = 63,552,668,284.46/258,314.90
  6. Step 6: Final answer
    x = 246,027.88

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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.