Home / 206,879.50-310,132.04-143,729.20

Finding the Fourth Proportional to 206,879.50, 310,132.04 and 143,729.20

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Solution

The fourth proportional to 206,879.50, 310,132.04 and 143,729.20 is: 215,463.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,879.50 : 310,132.04 = 143,729.20 : x
  2. Step 2: Convert to fraction form
    206,879.50/310,132.04 = 143,729.20/x
  3. Step 3: Cross multiply
    206,879.50x = 310,132.04 × 143,729.20
  4. Step 4: Simplify right side
    206,879.50x = 44,575,030,003.57
  5. Step 5: Solve for x
    x = 44,575,030,003.57/206,879.50
  6. Step 6: Final answer
    x = 215,463.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.