Home / 206,471.29-309,670.03-131,368.34

Finding the Fourth Proportional to 206,471.29, 309,670.03 and 131,368.34

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Solution

The fourth proportional to 206,471.29, 309,670.03 and 131,368.34 is: 197,029.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,471.29 : 309,670.03 = 131,368.34 : x
  2. Step 2: Convert to fraction form
    206,471.29/309,670.03 = 131,368.34/x
  3. Step 3: Cross multiply
    206,471.29x = 309,670.03 × 131,368.34
  4. Step 4: Simplify right side
    206,471.29x = 40,680,837,788.85
  5. Step 5: Solve for x
    x = 40,680,837,788.85/206,471.29
  6. Step 6: Final answer
    x = 197,029.03

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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.