Home / 320,974.04-442,938.74-177,731.01

Finding the Fourth Proportional to 320,974.04, 442,938.74 and 177,731.01

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Solution

The fourth proportional to 320,974.04, 442,938.74 and 177,731.01 is: 245,265.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,974.04 : 442,938.74 = 177,731.01 : x
  2. Step 2: Convert to fraction form
    320,974.04/442,938.74 = 177,731.01/x
  3. Step 3: Cross multiply
    320,974.04x = 442,938.74 × 177,731.01
  4. Step 4: Simplify right side
    320,974.04x = 78,723,949,628.33
  5. Step 5: Solve for x
    x = 78,723,949,628.33/320,974.04
  6. Step 6: Final answer
    x = 245,265.78

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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.