Home / 320,972.32-442,943.94-177,741.64

Finding the Fourth Proportional to 320,972.32, 442,943.94 and 177,741.64

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Solution

The fourth proportional to 320,972.32, 442,943.94 and 177,741.64 is: 245,284.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,972.32 : 442,943.94 = 177,741.64 : x
  2. Step 2: Convert to fraction form
    320,972.32/442,943.94 = 177,741.64/x
  3. Step 3: Cross multiply
    320,972.32x = 442,943.94 × 177,741.64
  4. Step 4: Simplify right side
    320,972.32x = 78,729,582,323.66
  5. Step 5: Solve for x
    x = 78,729,582,323.66/320,972.32
  6. Step 6: Final answer
    x = 245,284.65

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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.