Home / 313,042.40-469,822.80-144,821.60

Finding the Fourth Proportional to 313,042.40, 469,822.80 and 144,821.60

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Solution

The fourth proportional to 313,042.40, 469,822.80 and 144,821.60 is: 217,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,042.40 : 469,822.80 = 144,821.60 : x
  2. Step 2: Convert to fraction form
    313,042.40/469,822.80 = 144,821.60/x
  3. Step 3: Cross multiply
    313,042.40x = 469,822.80 × 144,821.60
  4. Step 4: Simplify right side
    313,042.40x = 68,040,489,612.48
  5. Step 5: Solve for x
    x = 68,040,489,612.48/313,042.40
  6. Step 6: Final answer
    x = 217,352.31

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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.