Home / 216,451.18-298,716.57-120,958.42

Finding the Fourth Proportional to 216,451.18, 298,716.57 and 120,958.42

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Solution

The fourth proportional to 216,451.18, 298,716.57 and 120,958.42 is: 166,930.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,451.18 : 298,716.57 = 120,958.42 : x
  2. Step 2: Convert to fraction form
    216,451.18/298,716.57 = 120,958.42/x
  3. Step 3: Cross multiply
    216,451.18x = 298,716.57 × 120,958.42
  4. Step 4: Simplify right side
    216,451.18x = 36,132,284,335.02
  5. Step 5: Solve for x
    x = 36,132,284,335.02/216,451.18
  6. Step 6: Final answer
    x = 166,930.41

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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.