Home / 481,031.31-721,343.96-144,119.86

Finding the Fourth Proportional to 481,031.31, 721,343.96 and 144,119.86

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Solution

The fourth proportional to 481,031.31, 721,343.96 and 144,119.86 is: 216,118.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,031.31 : 721,343.96 = 144,119.86 : x
  2. Step 2: Convert to fraction form
    481,031.31/721,343.96 = 144,119.86/x
  3. Step 3: Cross multiply
    481,031.31x = 721,343.96 × 144,119.86
  4. Step 4: Simplify right side
    481,031.31x = 103,959,990,527.05
  5. Step 5: Solve for x
    x = 103,959,990,527.05/481,031.31
  6. Step 6: Final answer
    x = 216,118.97

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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.