Home / 275,962.20-380,823.30-153,449.70

Finding the Fourth Proportional to 275,962.20, 380,823.30 and 153,449.70

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Solution

The fourth proportional to 275,962.20, 380,823.30 and 153,449.70 is: 211,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,962.20 : 380,823.30 = 153,449.70 : x
  2. Step 2: Convert to fraction form
    275,962.20/380,823.30 = 153,449.70/x
  3. Step 3: Cross multiply
    275,962.20x = 380,823.30 × 153,449.70
  4. Step 4: Simplify right side
    275,962.20x = 58,437,221,138.01
  5. Step 5: Solve for x
    x = 58,437,221,138.01/275,962.20
  6. Step 6: Final answer
    x = 211,758.06

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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.