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Finding the Fourth Proportional to 218,218.89, 301,117.59 and 122,723.55

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Solution

The fourth proportional to 218,218.89, 301,117.59 and 122,723.55 is: 169,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,218.89 : 301,117.59 = 122,723.55 : x
  2. Step 2: Convert to fraction form
    218,218.89/301,117.59 = 122,723.55/x
  3. Step 3: Cross multiply
    218,218.89x = 301,117.59 × 122,723.55
  4. Step 4: Simplify right side
    218,218.89x = 36,954,219,612.24
  5. Step 5: Solve for x
    x = 36,954,219,612.24/218,218.89
  6. Step 6: Final answer
    x = 169,344.73

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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.