Home / 218,217.39-301,115.52-122,722.04

Finding the Fourth Proportional to 218,217.39, 301,115.52 and 122,722.04

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Solution

The fourth proportional to 218,217.39, 301,115.52 and 122,722.04 is: 169,342.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,217.39 : 301,115.52 = 122,722.04 : x
  2. Step 2: Convert to fraction form
    218,217.39/301,115.52 = 122,722.04/x
  3. Step 3: Cross multiply
    218,217.39x = 301,115.52 × 122,722.04
  4. Step 4: Simplify right side
    218,217.39x = 36,953,510,890.06
  5. Step 5: Solve for x
    x = 36,953,510,890.06/218,217.39
  6. Step 6: Final answer
    x = 169,342.65

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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.