Home / 313,730.85-432,947.40-177,790.70

Finding the Fourth Proportional to 313,730.85, 432,947.40 and 177,790.70

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Solution

The fourth proportional to 313,730.85, 432,947.40 and 177,790.70 is: 245,350.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,730.85 : 432,947.40 = 177,790.70 : x
  2. Step 2: Convert to fraction form
    313,730.85/432,947.40 = 177,790.70/x
  3. Step 3: Cross multiply
    313,730.85x = 432,947.40 × 177,790.70
  4. Step 4: Simplify right side
    313,730.85x = 76,974,019,144.44
  5. Step 5: Solve for x
    x = 76,974,019,144.44/313,730.85
  6. Step 6: Final answer
    x = 245,350.49

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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.