Home / 317,961.16-438,791.52-181,994.56

Finding the Fourth Proportional to 317,961.16, 438,791.52 and 181,994.56

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Solution

The fourth proportional to 317,961.16, 438,791.52 and 181,994.56 is: 251,155.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,961.16 : 438,791.52 = 181,994.56 : x
  2. Step 2: Convert to fraction form
    317,961.16/438,791.52 = 181,994.56/x
  3. Step 3: Cross multiply
    317,961.16x = 438,791.52 × 181,994.56
  4. Step 4: Simplify right side
    317,961.16x = 79,857,669,614.13
  5. Step 5: Solve for x
    x = 79,857,669,614.13/317,961.16
  6. Step 6: Final answer
    x = 251,155.42

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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.