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Finding the Fourth Proportional to 252,805.95, 349,012.34 and 172,351.70

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Solution

The fourth proportional to 252,805.95, 349,012.34 and 172,351.70 is: 237,940.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,805.95 : 349,012.34 = 172,351.70 : x
  2. Step 2: Convert to fraction form
    252,805.95/349,012.34 = 172,351.70/x
  3. Step 3: Cross multiply
    252,805.95x = 349,012.34 × 172,351.70
  4. Step 4: Simplify right side
    252,805.95x = 60,152,867,513.16
  5. Step 5: Solve for x
    x = 60,152,867,513.16/252,805.95
  6. Step 6: Final answer
    x = 237,940.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.