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Finding the Fourth Proportional to 296,871.20, 445,306.80 and 274,061.60

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Solution

The fourth proportional to 296,871.20, 445,306.80 and 274,061.60 is: 411,092.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,871.20 : 445,306.80 = 274,061.60 : x
  2. Step 2: Convert to fraction form
    296,871.20/445,306.80 = 274,061.60/x
  3. Step 3: Cross multiply
    296,871.20x = 445,306.80 × 274,061.60
  4. Step 4: Simplify right side
    296,871.20x = 122,041,494,098.88
  5. Step 5: Solve for x
    x = 122,041,494,098.88/296,871.20
  6. Step 6: Final answer
    x = 411,092.40

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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.