Home / 320,983.09-442,951.23-177,740.07

Finding the Fourth Proportional to 320,983.09, 442,951.23 and 177,740.07

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Solution

The fourth proportional to 320,983.09, 442,951.23 and 177,740.07 is: 245,278.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,983.09 : 442,951.23 = 177,740.07 : x
  2. Step 2: Convert to fraction form
    320,983.09/442,951.23 = 177,740.07/x
  3. Step 3: Cross multiply
    320,983.09x = 442,951.23 × 177,740.07
  4. Step 4: Simplify right side
    320,983.09x = 78,730,182,626.79
  5. Step 5: Solve for x
    x = 78,730,182,626.79/320,983.09
  6. Step 6: Final answer
    x = 245,278.29

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1.5x scale

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.