Home / 216,544.48-324,872.76-66,781.46

Finding the Fourth Proportional to 216,544.48, 324,872.76 and 66,781.46

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Solution

The fourth proportional to 216,544.48, 324,872.76 and 66,781.46 is: 100,189.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,544.48 : 324,872.76 = 66,781.46 : x
  2. Step 2: Convert to fraction form
    216,544.48/324,872.76 = 66,781.46/x
  3. Step 3: Cross multiply
    216,544.48x = 324,872.76 × 66,781.46
  4. Step 4: Simplify right side
    216,544.48x = 21,695,477,227.03
  5. Step 5: Solve for x
    x = 21,695,477,227.03/216,544.48
  6. Step 6: Final answer
    x = 100,189.47

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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.