Home / 216,414.28-298,630.38-120,918.88

Finding the Fourth Proportional to 216,414.28, 298,630.38 and 120,918.88

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Solution

The fourth proportional to 216,414.28, 298,630.38 and 120,918.88 is: 166,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,414.28 : 298,630.38 = 120,918.88 : x
  2. Step 2: Convert to fraction form
    216,414.28/298,630.38 = 120,918.88/x
  3. Step 3: Cross multiply
    216,414.28x = 298,630.38 × 120,918.88
  4. Step 4: Simplify right side
    216,414.28x = 36,110,051,083.57
  5. Step 5: Solve for x
    x = 36,110,051,083.57/216,414.28
  6. Step 6: Final answer
    x = 166,856.14

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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.