Home / 258,311.56-387,460.18-68,773.55

Finding the Fourth Proportional to 258,311.56, 387,460.18 and 68,773.55

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Solution

The fourth proportional to 258,311.56, 387,460.18 and 68,773.55 is: 103,158.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,311.56 : 387,460.18 = 68,773.55 : x
  2. Step 2: Convert to fraction form
    258,311.56/387,460.18 = 68,773.55/x
  3. Step 3: Cross multiply
    258,311.56x = 387,460.18 × 68,773.55
  4. Step 4: Simplify right side
    258,311.56x = 26,647,012,062.24
  5. Step 5: Solve for x
    x = 26,647,012,062.24/258,311.56
  6. Step 6: Final answer
    x = 103,158.42

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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.