Home / 320,943.27-442,926.65-177,716.64

Finding the Fourth Proportional to 320,943.27, 442,926.65 and 177,716.64

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Solution

The fourth proportional to 320,943.27, 442,926.65 and 177,716.64 is: 245,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,943.27 : 442,926.65 = 177,716.64 : x
  2. Step 2: Convert to fraction form
    320,943.27/442,926.65 = 177,716.64/x
  3. Step 3: Cross multiply
    320,943.27x = 442,926.65 × 177,716.64
  4. Step 4: Simplify right side
    320,943.27x = 78,715,436,004.46
  5. Step 5: Solve for x
    x = 78,715,436,004.46/320,943.27
  6. Step 6: Final answer
    x = 245,262.77

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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.