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Finding the Fourth Proportional to 210,133.85, 315,203.06 and 60,375.38

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Solution

The fourth proportional to 210,133.85, 315,203.06 and 60,375.38 is: 90,563.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,133.85 : 315,203.06 = 60,375.38 : x
  2. Step 2: Convert to fraction form
    210,133.85/315,203.06 = 60,375.38/x
  3. Step 3: Cross multiply
    210,133.85x = 315,203.06 × 60,375.38
  4. Step 4: Simplify right side
    210,133.85x = 19,030,504,524.66
  5. Step 5: Solve for x
    x = 19,030,504,524.66/210,133.85
  6. Step 6: Final answer
    x = 90,563.73

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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.