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Finding the Fourth Proportional to 277,385.68, 382,788.49 and 154,879.95

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Solution

The fourth proportional to 277,385.68, 382,788.49 and 154,879.95 is: 213,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,385.68 : 382,788.49 = 154,879.95 : x
  2. Step 2: Convert to fraction form
    277,385.68/382,788.49 = 154,879.95/x
  3. Step 3: Cross multiply
    277,385.68x = 382,788.49 × 154,879.95
  4. Step 4: Simplify right side
    277,385.68x = 59,286,262,191.78
  5. Step 5: Solve for x
    x = 59,286,262,191.78/277,385.68
  6. Step 6: Final answer
    x = 213,732.24

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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.