Home / 216,726.20-324,987.24-140,701.76

Finding the Fourth Proportional to 216,726.20, 324,987.24 and 140,701.76

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Solution

The fourth proportional to 216,726.20, 324,987.24 and 140,701.76 is: 210,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,726.20 : 324,987.24 = 140,701.76 : x
  2. Step 2: Convert to fraction form
    216,726.20/324,987.24 = 140,701.76/x
  3. Step 3: Cross multiply
    216,726.20x = 324,987.24 × 140,701.76
  4. Step 4: Simplify right side
    216,726.20x = 45,726,276,645.54
  5. Step 5: Solve for x
    x = 45,726,276,645.54/216,726.20
  6. Step 6: Final answer
    x = 210,986.38

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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.