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Finding the Fourth Proportional to 274,503.39, 378,797.10 and 153,624.27

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Solution

The fourth proportional to 274,503.39, 378,797.10 and 153,624.27 is: 211,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,503.39 : 378,797.10 = 153,624.27 : x
  2. Step 2: Convert to fraction form
    274,503.39/378,797.10 = 153,624.27/x
  3. Step 3: Cross multiply
    274,503.39x = 378,797.10 × 153,624.27
  4. Step 4: Simplify right side
    274,503.39x = 58,192,427,965.62
  5. Step 5: Solve for x
    x = 58,192,427,965.62/274,503.39
  6. Step 6: Final answer
    x = 211,991.66

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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.