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Finding the Fourth Proportional to 218,060.92, 300,932.60 and 122,567.32

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Solution

The fourth proportional to 218,060.92, 300,932.60 and 122,567.32 is: 169,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,060.92 : 300,932.60 = 122,567.32 : x
  2. Step 2: Convert to fraction form
    218,060.92/300,932.60 = 122,567.32/x
  3. Step 3: Cross multiply
    218,060.92x = 300,932.60 × 122,567.32
  4. Step 4: Simplify right side
    218,060.92x = 36,884,502,282.63
  5. Step 5: Solve for x
    x = 36,884,502,282.63/218,060.92
  6. Step 6: Final answer
    x = 169,147.70

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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.