Home / 259,812.24-389,743.19-72,823.20

Finding the Fourth Proportional to 259,812.24, 389,743.19 and 72,823.20

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Solution

The fourth proportional to 259,812.24, 389,743.19 and 72,823.20 is: 109,241.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,812.24 : 389,743.19 = 72,823.20 : x
  2. Step 2: Convert to fraction form
    259,812.24/389,743.19 = 72,823.20/x
  3. Step 3: Cross multiply
    259,812.24x = 389,743.19 × 72,823.20
  4. Step 4: Simplify right side
    259,812.24x = 28,382,346,274.01
  5. Step 5: Solve for x
    x = 28,382,346,274.01/259,812.24
  6. Step 6: Final answer
    x = 109,241.76

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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.