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Finding the Fourth Proportional to 173,147.70, 259,721.55 and 154,485.30

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Solution

The fourth proportional to 173,147.70, 259,721.55 and 154,485.30 is: 231,727.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,147.70 : 259,721.55 = 154,485.30 : x
  2. Step 2: Convert to fraction form
    173,147.70/259,721.55 = 154,485.30/x
  3. Step 3: Cross multiply
    173,147.70x = 259,721.55 × 154,485.30
  4. Step 4: Simplify right side
    173,147.70x = 40,123,161,568.22
  5. Step 5: Solve for x
    x = 40,123,161,568.22/173,147.70
  6. Step 6: Final answer
    x = 231,727.95

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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.