Home / 317,930.73-438,743.16-181,964.13

Finding the Fourth Proportional to 317,930.73, 438,743.16 and 181,964.13

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Solution

The fourth proportional to 317,930.73, 438,743.16 and 181,964.13 is: 251,109.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,930.73 : 438,743.16 = 181,964.13 : x
  2. Step 2: Convert to fraction form
    317,930.73/438,743.16 = 181,964.13/x
  3. Step 3: Cross multiply
    317,930.73x = 438,743.16 × 181,964.13
  4. Step 4: Simplify right side
    317,930.73x = 79,835,517,402.85
  5. Step 5: Solve for x
    x = 79,835,517,402.85/317,930.73
  6. Step 6: Final answer
    x = 251,109.79

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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.