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Finding the Fourth Proportional to 220,174.78, 303,842.75 and 119,572.78

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Solution

The fourth proportional to 220,174.78, 303,842.75 and 119,572.78 is: 165,011.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,174.78 : 303,842.75 = 119,572.78 : x
  2. Step 2: Convert to fraction form
    220,174.78/303,842.75 = 119,572.78/x
  3. Step 3: Cross multiply
    220,174.78x = 303,842.75 × 119,572.78
  4. Step 4: Simplify right side
    220,174.78x = 36,331,322,300.35
  5. Step 5: Solve for x
    x = 36,331,322,300.35/220,174.78
  6. Step 6: Final answer
    x = 165,011.28

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1.5x scale

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.