Home / 218,231.01-301,135.32-122,717.43

Finding the Fourth Proportional to 218,231.01, 301,135.32 and 122,717.43

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Solution

The fourth proportional to 218,231.01, 301,135.32 and 122,717.43 is: 169,336.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,231.01 : 301,135.32 = 122,717.43 : x
  2. Step 2: Convert to fraction form
    218,231.01/301,135.32 = 122,717.43/x
  3. Step 3: Cross multiply
    218,231.01x = 301,135.32 × 122,717.43
  4. Step 4: Simplify right side
    218,231.01x = 36,954,552,552.63
  5. Step 5: Solve for x
    x = 36,954,552,552.63/218,231.01
  6. Step 6: Final answer
    x = 169,336.85

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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.