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Finding the Fourth Proportional to 169,254.40, 253,766.40 and 80,550.40

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Solution

The fourth proportional to 169,254.40, 253,766.40 and 80,550.40 is: 120,770.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,254.40 : 253,766.40 = 80,550.40 : x
  2. Step 2: Convert to fraction form
    169,254.40/253,766.40 = 80,550.40/x
  3. Step 3: Cross multiply
    169,254.40x = 253,766.40 × 80,550.40
  4. Step 4: Simplify right side
    169,254.40x = 20,440,985,026.56
  5. Step 5: Solve for x
    x = 20,440,985,026.56/169,254.40
  6. Step 6: Final answer
    x = 120,770.77

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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.