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Finding the Fourth Proportional to 218,039.92, 300,887.22 and 122,551.84

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Solution

The fourth proportional to 218,039.92, 300,887.22 and 122,551.84 is: 169,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,039.92 : 300,887.22 = 122,551.84 : x
  2. Step 2: Convert to fraction form
    218,039.92/300,887.22 = 122,551.84/x
  3. Step 3: Cross multiply
    218,039.92x = 300,887.22 × 122,551.84
  4. Step 4: Simplify right side
    218,039.92x = 36,874,282,443.48
  5. Step 5: Solve for x
    x = 36,874,282,443.48/218,039.92
  6. Step 6: Final answer
    x = 169,117.12

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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.