Home / 216,565.26-324,723.20-83,428.18

Finding the Fourth Proportional to 216,565.26, 324,723.20 and 83,428.18

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Solution

The fourth proportional to 216,565.26, 324,723.20 and 83,428.18 is: 125,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,565.26 : 324,723.20 = 83,428.18 : x
  2. Step 2: Convert to fraction form
    216,565.26/324,723.20 = 83,428.18/x
  3. Step 3: Cross multiply
    216,565.26x = 324,723.20 × 83,428.18
  4. Step 4: Simplify right side
    216,565.26x = 27,091,065,579.78
  5. Step 5: Solve for x
    x = 27,091,065,579.78/216,565.26
  6. Step 6: Final answer
    x = 125,094.24

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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.