Home / 320,980.59-442,947.78-177,737.57

Finding the Fourth Proportional to 320,980.59, 442,947.78 and 177,737.57

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Solution

The fourth proportional to 320,980.59, 442,947.78 and 177,737.57 is: 245,274.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,980.59 : 442,947.78 = 177,737.57 : x
  2. Step 2: Convert to fraction form
    320,980.59/442,947.78 = 177,737.57/x
  3. Step 3: Cross multiply
    320,980.59x = 442,947.78 × 177,737.57
  4. Step 4: Simplify right side
    320,980.59x = 78,728,459,839.36
  5. Step 5: Solve for x
    x = 78,728,459,839.36/320,980.59
  6. Step 6: Final answer
    x = 245,274.83

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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.