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Finding the Fourth Proportional to 351,158.82, 526,753.26 and 137,972.90

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Solution

The fourth proportional to 351,158.82, 526,753.26 and 137,972.90 is: 206,965.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,158.82 : 526,753.26 = 137,972.90 : x
  2. Step 2: Convert to fraction form
    351,158.82/526,753.26 = 137,972.90/x
  3. Step 3: Cross multiply
    351,158.82x = 526,753.26 × 137,972.90
  4. Step 4: Simplify right side
    351,158.82x = 72,677,672,232.89
  5. Step 5: Solve for x
    x = 72,677,672,232.89/351,158.82
  6. Step 6: Final answer
    x = 206,965.25

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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.