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Finding the Fourth Proportional to 220,020.32, 303,619.92 and 119,416.16

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Solution

The fourth proportional to 220,020.32, 303,619.92 and 119,416.16 is: 164,789.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,020.32 : 303,619.92 = 119,416.16 : x
  2. Step 2: Convert to fraction form
    220,020.32/303,619.92 = 119,416.16/x
  3. Step 3: Cross multiply
    220,020.32x = 303,619.92 × 119,416.16
  4. Step 4: Simplify right side
    220,020.32x = 36,257,124,945.91
  5. Step 5: Solve for x
    x = 36,257,124,945.91/220,020.32
  6. Step 6: Final answer
    x = 164,789.89

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