Home / 203,234.23-280,451.33-111,335.31

Finding the Fourth Proportional to 203,234.23, 280,451.33 and 111,335.31

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Solution

The fourth proportional to 203,234.23, 280,451.33 and 111,335.31 is: 153,636.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,234.23 : 280,451.33 = 111,335.31 : x
  2. Step 2: Convert to fraction form
    203,234.23/280,451.33 = 111,335.31/x
  3. Step 3: Cross multiply
    203,234.23x = 280,451.33 × 111,335.31
  4. Step 4: Simplify right side
    203,234.23x = 31,224,135,626.29
  5. Step 5: Solve for x
    x = 31,224,135,626.29/203,234.23
  6. Step 6: Final answer
    x = 153,636.20

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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.