Home / 279,947.57-386,327.42-152,623.16

Finding the Fourth Proportional to 279,947.57, 386,327.42 and 152,623.16

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Solution

The fourth proportional to 279,947.57, 386,327.42 and 152,623.16 is: 210,619.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,947.57 : 386,327.42 = 152,623.16 : x
  2. Step 2: Convert to fraction form
    279,947.57/386,327.42 = 152,623.16/x
  3. Step 3: Cross multiply
    279,947.57x = 386,327.42 × 152,623.16
  4. Step 4: Simplify right side
    279,947.57x = 58,962,511,618.65
  5. Step 5: Solve for x
    x = 58,962,511,618.65/279,947.57
  6. Step 6: Final answer
    x = 210,619.84

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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.