Home / 320,589.17-442,426.07-177,346.74

Finding the Fourth Proportional to 320,589.17, 442,426.07 and 177,346.74

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Solution

The fourth proportional to 320,589.17, 442,426.07 and 177,346.74 is: 244,745.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,589.17 : 442,426.07 = 177,346.74 : x
  2. Step 2: Convert to fraction form
    320,589.17/442,426.07 = 177,346.74/x
  3. Step 3: Cross multiply
    320,589.17x = 442,426.07 × 177,346.74
  4. Step 4: Simplify right side
    320,589.17x = 78,462,821,648.88
  5. Step 5: Solve for x
    x = 78,462,821,648.88/320,589.17
  6. Step 6: Final answer
    x = 244,745.71

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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.