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Finding the Fourth Proportional to 274,503.89, 378,797.79 and 153,624.77

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Solution

The fourth proportional to 274,503.89, 378,797.79 and 153,624.77 is: 211,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,503.89 : 378,797.79 = 153,624.77 : x
  2. Step 2: Convert to fraction form
    274,503.89/378,797.79 = 153,624.77/x
  3. Step 3: Cross multiply
    274,503.89x = 378,797.79 × 153,624.77
  4. Step 4: Simplify right side
    274,503.89x = 58,192,723,365.26
  5. Step 5: Solve for x
    x = 58,192,723,365.26/274,503.89
  6. Step 6: Final answer
    x = 211,992.35

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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.