Home / 275,984.20-380,853.66-153,471.70

Finding the Fourth Proportional to 275,984.20, 380,853.66 and 153,471.70

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Solution

The fourth proportional to 275,984.20, 380,853.66 and 153,471.70 is: 211,788.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,984.20 : 380,853.66 = 153,471.70 : x
  2. Step 2: Convert to fraction form
    275,984.20/380,853.66 = 153,471.70/x
  3. Step 3: Cross multiply
    275,984.20x = 380,853.66 × 153,471.70
  4. Step 4: Simplify right side
    275,984.20x = 58,450,258,651.42
  5. Step 5: Solve for x
    x = 58,450,258,651.42/275,984.20
  6. Step 6: Final answer
    x = 211,788.42

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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.