Home / 481,148.40-721,519.92-144,237.36

Finding the Fourth Proportional to 481,148.40, 721,519.92 and 144,237.36

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Solution

The fourth proportional to 481,148.40, 721,519.92 and 144,237.36 is: 216,295.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,148.40 : 721,519.92 = 144,237.36 : x
  2. Step 2: Convert to fraction form
    481,148.40/721,519.92 = 144,237.36/x
  3. Step 3: Cross multiply
    481,148.40x = 721,519.92 × 144,237.36
  4. Step 4: Simplify right side
    481,148.40x = 104,070,128,448.21
  5. Step 5: Solve for x
    x = 104,070,128,448.21/481,148.40
  6. Step 6: Final answer
    x = 216,295.28

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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.