Home / 206,270.10-309,412.44-66,010.50

Finding the Fourth Proportional to 206,270.10, 309,412.44 and 66,010.50

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Solution

The fourth proportional to 206,270.10, 309,412.44 and 66,010.50 is: 99,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,270.10 : 309,412.44 = 66,010.50 : x
  2. Step 2: Convert to fraction form
    206,270.10/309,412.44 = 66,010.50/x
  3. Step 3: Cross multiply
    206,270.10x = 309,412.44 × 66,010.50
  4. Step 4: Simplify right side
    206,270.10x = 20,424,469,870.62
  5. Step 5: Solve for x
    x = 20,424,469,870.62/206,270.10
  6. Step 6: Final answer
    x = 99,018.08

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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.