Home / 317,540.58-438,205.79-179,717.00

Finding the Fourth Proportional to 317,540.58, 438,205.79 and 179,717.00

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Solution

The fourth proportional to 317,540.58, 438,205.79 and 179,717.00 is: 248,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,540.58 : 438,205.79 = 179,717.00 : x
  2. Step 2: Convert to fraction form
    317,540.58/438,205.79 = 179,717.00/x
  3. Step 3: Cross multiply
    317,540.58x = 438,205.79 × 179,717.00
  4. Step 4: Simplify right side
    317,540.58x = 78,753,026,871.82
  5. Step 5: Solve for x
    x = 78,753,026,871.82/317,540.58
  6. Step 6: Final answer
    x = 248,009.33

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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.