Home / 331,279.92-457,269.48-188,135.28

Finding the Fourth Proportional to 331,279.92, 457,269.48 and 188,135.28

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Solution

The fourth proportional to 331,279.92, 457,269.48 and 188,135.28 is: 259,685.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,279.92 : 457,269.48 = 188,135.28 : x
  2. Step 2: Convert to fraction form
    331,279.92/457,269.48 = 188,135.28/x
  3. Step 3: Cross multiply
    331,279.92x = 457,269.48 × 188,135.28
  4. Step 4: Simplify right side
    331,279.92x = 86,028,521,655.25
  5. Step 5: Solve for x
    x = 86,028,521,655.25/331,279.92
  6. Step 6: Final answer
    x = 259,685.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.