Home / 218,209.58-301,129.21-122,716.27

Finding the Fourth Proportional to 218,209.58, 301,129.21 and 122,716.27

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Solution

The fourth proportional to 218,209.58, 301,129.21 and 122,716.27 is: 169,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,209.58 : 301,129.21 = 122,716.27 : x
  2. Step 2: Convert to fraction form
    218,209.58/301,129.21 = 122,716.27/x
  3. Step 3: Cross multiply
    218,209.58x = 301,129.21 × 122,716.27
  4. Step 4: Simplify right side
    218,209.58x = 36,953,452,275.20
  5. Step 5: Solve for x
    x = 36,953,452,275.20/218,209.58
  6. Step 6: Final answer
    x = 169,348.44

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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.