Home / 216,441.72-298,683.84-120,949.20

Finding the Fourth Proportional to 216,441.72, 298,683.84 and 120,949.20

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Solution

The fourth proportional to 216,441.72, 298,683.84 and 120,949.20 is: 166,906.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,441.72 : 298,683.84 = 120,949.20 : x
  2. Step 2: Convert to fraction form
    216,441.72/298,683.84 = 120,949.20/x
  3. Step 3: Cross multiply
    216,441.72x = 298,683.84 × 120,949.20
  4. Step 4: Simplify right side
    216,441.72x = 36,125,571,500.93
  5. Step 5: Solve for x
    x = 36,125,571,500.93/216,441.72
  6. Step 6: Final answer
    x = 166,906.69

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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.