Home / 412,268.40-618,042.60-159,721.20

Finding the Fourth Proportional to 412,268.40, 618,042.60 and 159,721.20

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Solution

The fourth proportional to 412,268.40, 618,042.60 and 159,721.20 is: 239,442.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,268.40 : 618,042.60 = 159,721.20 : x
  2. Step 2: Convert to fraction form
    412,268.40/618,042.60 = 159,721.20/x
  3. Step 3: Cross multiply
    412,268.40x = 618,042.60 × 159,721.20
  4. Step 4: Simplify right side
    412,268.40x = 98,714,505,723.12
  5. Step 5: Solve for x
    x = 98,714,505,723.12/412,268.40
  6. Step 6: Final answer
    x = 239,442.33

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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.