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Finding the Fourth Proportional to 351,271.80, 526,906.92 and 271,425.87

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Solution

The fourth proportional to 351,271.80, 526,906.92 and 271,425.87 is: 407,138.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,271.80 : 526,906.92 = 271,425.87 : x
  2. Step 2: Convert to fraction form
    351,271.80/526,906.92 = 271,425.87/x
  3. Step 3: Cross multiply
    351,271.80x = 526,906.92 × 271,425.87
  4. Step 4: Simplify right side
    351,271.80x = 143,016,169,170.02
  5. Step 5: Solve for x
    x = 143,016,169,170.02/351,271.80
  6. Step 6: Final answer
    x = 407,138.20

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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.