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Finding the Fourth Proportional to 268,930.20, 371,123.67 and 149,698.20

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Solution

The fourth proportional to 268,930.20, 371,123.67 and 149,698.20 is: 206,583.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,930.20 : 371,123.67 = 149,698.20 : x
  2. Step 2: Convert to fraction form
    268,930.20/371,123.67 = 149,698.20/x
  3. Step 3: Cross multiply
    268,930.20x = 371,123.67 × 149,698.20
  4. Step 4: Simplify right side
    268,930.20x = 55,556,545,376.39
  5. Step 5: Solve for x
    x = 55,556,545,376.39/268,930.20
  6. Step 6: Final answer
    x = 206,583.51

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1.5x scale

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.