Home / 213,767.20-320,439.30-101,249.65

Finding the Fourth Proportional to 213,767.20, 320,439.30 and 101,249.65

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Solution

The fourth proportional to 213,767.20, 320,439.30 and 101,249.65 is: 151,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,767.20 : 320,439.30 = 101,249.65 : x
  2. Step 2: Convert to fraction form
    213,767.20/320,439.30 = 101,249.65/x
  3. Step 3: Cross multiply
    213,767.20x = 320,439.30 × 101,249.65
  4. Step 4: Simplify right side
    213,767.20x = 32,444,366,971.25
  5. Step 5: Solve for x
    x = 32,444,366,971.25/213,767.20
  6. Step 6: Final answer
    x = 151,774.30

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1.5x scale

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.