Home / 320,979.32-442,946.01-177,736.28

Finding the Fourth Proportional to 320,979.32, 442,946.01 and 177,736.28

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Solution

The fourth proportional to 320,979.32, 442,946.01 and 177,736.28 is: 245,273.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,979.32 : 442,946.01 = 177,736.28 : x
  2. Step 2: Convert to fraction form
    320,979.32/442,946.01 = 177,736.28/x
  3. Step 3: Cross multiply
    320,979.32x = 442,946.01 × 177,736.28
  4. Step 4: Simplify right side
    320,979.32x = 78,727,575,169.56
  5. Step 5: Solve for x
    x = 78,727,575,169.56/320,979.32
  6. Step 6: Final answer
    x = 245,273.05

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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.