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Finding the Fourth Proportional to 274,043.58, 377,836.02 and 209,591.88

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Solution

The fourth proportional to 274,043.58, 377,836.02 and 209,591.88 is: 288,973.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,043.58 : 377,836.02 = 209,591.88 : x
  2. Step 2: Convert to fraction form
    274,043.58/377,836.02 = 209,591.88/x
  3. Step 3: Cross multiply
    274,043.58x = 377,836.02 × 209,591.88
  4. Step 4: Simplify right side
    274,043.58x = 79,191,361,763.52
  5. Step 5: Solve for x
    x = 79,191,361,763.52/274,043.58
  6. Step 6: Final answer
    x = 288,973.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.