Home / 481,028.81-721,340.21-144,117.36

Finding the Fourth Proportional to 481,028.81, 721,340.21 and 144,117.36

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Solution

The fourth proportional to 481,028.81, 721,340.21 and 144,117.36 is: 216,115.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,028.81 : 721,340.21 = 144,117.36 : x
  2. Step 2: Convert to fraction form
    481,028.81/721,340.21 = 144,117.36/x
  3. Step 3: Cross multiply
    481,028.81x = 721,340.21 × 144,117.36
  4. Step 4: Simplify right side
    481,028.81x = 103,957,647,087.34
  5. Step 5: Solve for x
    x = 103,957,647,087.34/481,028.81
  6. Step 6: Final answer
    x = 216,115.22

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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.