Home / 216,455.18-298,707.27-120,961.85

Finding the Fourth Proportional to 216,455.18, 298,707.27 and 120,961.85

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Solution

The fourth proportional to 216,455.18, 298,707.27 and 120,961.85 is: 166,926.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,455.18 : 298,707.27 = 120,961.85 : x
  2. Step 2: Convert to fraction form
    216,455.18/298,707.27 = 120,961.85/x
  3. Step 3: Cross multiply
    216,455.18x = 298,707.27 × 120,961.85
  4. Step 4: Simplify right side
    216,455.18x = 36,132,183,987.65
  5. Step 5: Solve for x
    x = 36,132,183,987.65/216,455.18
  6. Step 6: Final answer
    x = 166,926.86

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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.