Home / 208,331.82-312,512.40-103,122.54

Finding the Fourth Proportional to 208,331.82, 312,512.40 and 103,122.54

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Solution

The fourth proportional to 208,331.82, 312,512.40 and 103,122.54 is: 154,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,331.82 : 312,512.40 = 103,122.54 : x
  2. Step 2: Convert to fraction form
    208,331.82/312,512.40 = 103,122.54/x
  3. Step 3: Cross multiply
    208,331.82x = 312,512.40 × 103,122.54
  4. Step 4: Simplify right side
    208,331.82x = 32,227,072,469.50
  5. Step 5: Solve for x
    x = 32,227,072,469.50/208,331.82
  6. Step 6: Final answer
    x = 154,691.07

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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.