Home / 275,439.22-380,112.93-154,589.72

Finding the Fourth Proportional to 275,439.22, 380,112.93 and 154,589.72

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Solution

The fourth proportional to 275,439.22, 380,112.93 and 154,589.72 is: 213,337.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,439.22 : 380,112.93 = 154,589.72 : x
  2. Step 2: Convert to fraction form
    275,439.22/380,112.93 = 154,589.72/x
  3. Step 3: Cross multiply
    275,439.22x = 380,112.93 × 154,589.72
  4. Step 4: Simplify right side
    275,439.22x = 58,761,549,516.52
  5. Step 5: Solve for x
    x = 58,761,549,516.52/275,439.22
  6. Step 6: Final answer
    x = 213,337.63

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1.5x scale

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.