Home / 206,899.89-310,353.74-57,144.17

Finding the Fourth Proportional to 206,899.89, 310,353.74 and 57,144.17

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Solution

The fourth proportional to 206,899.89, 310,353.74 and 57,144.17 is: 85,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,899.89 : 310,353.74 = 57,144.17 : x
  2. Step 2: Convert to fraction form
    206,899.89/310,353.74 = 57,144.17/x
  3. Step 3: Cross multiply
    206,899.89x = 310,353.74 × 57,144.17
  4. Step 4: Simplify right side
    206,899.89x = 17,734,905,469.79
  5. Step 5: Solve for x
    x = 17,734,905,469.79/206,899.89
  6. Step 6: Final answer
    x = 85,717.33

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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.