Home / 305,454.87-458,360.82-127,947

Finding the Fourth Proportional to 305,454.87, 458,360.82 and 127,947

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Solution

The fourth proportional to 305,454.87, 458,360.82 and 127,947 is: 191,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,454.87 : 458,360.82 = 127,947 : x
  2. Step 2: Convert to fraction form
    305,454.87/458,360.82 = 127,947/x
  3. Step 3: Cross multiply
    305,454.87x = 458,360.82 × 127,947
  4. Step 4: Simplify right side
    305,454.87x = 58,645,891,836.54
  5. Step 5: Solve for x
    x = 58,645,891,836.54/305,454.87
  6. Step 6: Final answer
    x = 191,995.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.