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Finding the Fourth Proportional to 207,064.78, 310,604.11 and 57,292.54

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Solution

The fourth proportional to 207,064.78, 310,604.11 and 57,292.54 is: 85,940.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,064.78 : 310,604.11 = 57,292.54 : x
  2. Step 2: Convert to fraction form
    207,064.78/310,604.11 = 57,292.54/x
  3. Step 3: Cross multiply
    207,064.78x = 310,604.11 × 57,292.54
  4. Step 4: Simplify right side
    207,064.78x = 17,795,297,476.60
  5. Step 5: Solve for x
    x = 17,795,297,476.60/207,064.78
  6. Step 6: Final answer
    x = 85,940.73

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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.