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Finding the Fourth Proportional to 526,278.92, 789,468.22 and 147,199.72

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Solution

The fourth proportional to 526,278.92, 789,468.22 and 147,199.72 is: 220,813.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,278.92 : 789,468.22 = 147,199.72 : x
  2. Step 2: Convert to fraction form
    526,278.92/789,468.22 = 147,199.72/x
  3. Step 3: Cross multiply
    526,278.92x = 789,468.22 × 147,199.72
  4. Step 4: Simplify right side
    526,278.92x = 116,209,500,932.90
  5. Step 5: Solve for x
    x = 116,209,500,932.90/526,278.92
  6. Step 6: Final answer
    x = 220,813.52

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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.