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Finding the Fourth Proportional to 345,722, 518,583 and 112,250

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Solution

The fourth proportional to 345,722, 518,583 and 112,250 is: 168,375

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,722 : 518,583 = 112,250 : x
  2. Step 2: Convert to fraction form
    345,722/518,583 = 112,250/x
  3. Step 3: Cross multiply
    345,722x = 518,583 × 112,250
  4. Step 4: Simplify right side
    345,722x = 58,210,941,750
  5. Step 5: Solve for x
    x = 58,210,941,750/345,722
  6. Step 6: Final answer
    x = 168,375

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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.