Home / 331,976.26-497,963.40-142,313.68

Finding the Fourth Proportional to 331,976.26, 497,963.40 and 142,313.68

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Solution

The fourth proportional to 331,976.26, 497,963.40 and 142,313.68 is: 213,470.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,976.26 : 497,963.40 = 142,313.68 : x
  2. Step 2: Convert to fraction form
    331,976.26/497,963.40 = 142,313.68/x
  3. Step 3: Cross multiply
    331,976.26x = 497,963.40 × 142,313.68
  4. Step 4: Simplify right side
    331,976.26x = 70,867,003,959.31
  5. Step 5: Solve for x
    x = 70,867,003,959.31/331,976.26
  6. Step 6: Final answer
    x = 213,470.10

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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.