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Finding the Fourth Proportional to 218,102.00, 300,957.80 and 121,290.17

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Solution

The fourth proportional to 218,102.00, 300,957.80 and 121,290.17 is: 167,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,102.00 : 300,957.80 = 121,290.17 : x
  2. Step 2: Convert to fraction form
    218,102.00/300,957.80 = 121,290.17/x
  3. Step 3: Cross multiply
    218,102.00x = 300,957.80 × 121,290.17
  4. Step 4: Simplify right side
    218,102.00x = 36,503,220,613.59
  5. Step 5: Solve for x
    x = 36,503,220,613.59/218,102.00
  6. Step 6: Final answer
    x = 167,367.66

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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.