Home / 320,944.78-442,928.70-177,718.15

Finding the Fourth Proportional to 320,944.78, 442,928.70 and 177,718.15

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Solution

The fourth proportional to 320,944.78, 442,928.70 and 177,718.15 is: 245,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,944.78 : 442,928.70 = 177,718.15 : x
  2. Step 2: Convert to fraction form
    320,944.78/442,928.70 = 177,718.15/x
  3. Step 3: Cross multiply
    320,944.78x = 442,928.70 × 177,718.15
  4. Step 4: Simplify right side
    320,944.78x = 78,716,469,145.91
  5. Step 5: Solve for x
    x = 78,716,469,145.91/320,944.78
  6. Step 6: Final answer
    x = 245,264.84

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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.