Home / 218,314.95-301,274.17-122,821.75

Finding the Fourth Proportional to 218,314.95, 301,274.17 and 122,821.75

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Solution

The fourth proportional to 218,314.95, 301,274.17 and 122,821.75 is: 169,493.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,314.95 : 301,274.17 = 122,821.75 : x
  2. Step 2: Convert to fraction form
    218,314.95/301,274.17 = 122,821.75/x
  3. Step 3: Cross multiply
    218,314.95x = 301,274.17 × 122,821.75
  4. Step 4: Simplify right side
    218,314.95x = 37,003,020,789.20
  5. Step 5: Solve for x
    x = 37,003,020,789.20/218,314.95
  6. Step 6: Final answer
    x = 169,493.76

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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.