Home / 316,001.32-436,081.79-172,761.32

Finding the Fourth Proportional to 316,001.32, 436,081.79 and 172,761.32

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Solution

The fourth proportional to 316,001.32, 436,081.79 and 172,761.32 is: 238,410.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,001.32 : 436,081.79 = 172,761.32 : x
  2. Step 2: Convert to fraction form
    316,001.32/436,081.79 = 172,761.32/x
  3. Step 3: Cross multiply
    316,001.32x = 436,081.79 × 172,761.32
  4. Step 4: Simplify right side
    316,001.32x = 75,338,067,190.47
  5. Step 5: Solve for x
    x = 75,338,067,190.47/316,001.32
  6. Step 6: Final answer
    x = 238,410.61

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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.