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Finding the Fourth Proportional to 273,087.40, 409,631.10 and 271,337.80

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Solution

The fourth proportional to 273,087.40, 409,631.10 and 271,337.80 is: 407,006.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,087.40 : 409,631.10 = 271,337.80 : x
  2. Step 2: Convert to fraction form
    273,087.40/409,631.10 = 271,337.80/x
  3. Step 3: Cross multiply
    273,087.40x = 409,631.10 × 271,337.80
  4. Step 4: Simplify right side
    273,087.40x = 111,148,401,485.58
  5. Step 5: Solve for x
    x = 111,148,401,485.58/273,087.40
  6. Step 6: Final answer
    x = 407,006.70

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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.