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Finding the Fourth Proportional to 617,234.12, 925,757.64 and 167,990

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Solution

The fourth proportional to 617,234.12, 925,757.64 and 167,990 is: 251,959.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,234.12 : 925,757.64 = 167,990 : x
  2. Step 2: Convert to fraction form
    617,234.12/925,757.64 = 167,990/x
  3. Step 3: Cross multiply
    617,234.12x = 925,757.64 × 167,990
  4. Step 4: Simplify right side
    617,234.12x = 155,518,025,943.60
  5. Step 5: Solve for x
    x = 155,518,025,943.60/617,234.12
  6. Step 6: Final answer
    x = 251,959.54

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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.