Home / 218,169.30-301,036.94-121,360.38

Finding the Fourth Proportional to 218,169.30, 301,036.94 and 121,360.38

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Solution

The fourth proportional to 218,169.30, 301,036.94 and 121,360.38 is: 167,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,169.30 : 301,036.94 = 121,360.38 : x
  2. Step 2: Convert to fraction form
    218,169.30/301,036.94 = 121,360.38/x
  3. Step 3: Cross multiply
    218,169.30x = 301,036.94 × 121,360.38
  4. Step 4: Simplify right side
    218,169.30x = 36,533,957,845.18
  5. Step 5: Solve for x
    x = 36,533,957,845.18/218,169.30
  6. Step 6: Final answer
    x = 167,456.91

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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.