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Finding the Fourth Proportional to 250,372, 345,513.36 and 144,388

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Solution

The fourth proportional to 250,372, 345,513.36 and 144,388 is: 199,255.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,372 : 345,513.36 = 144,388 : x
  2. Step 2: Convert to fraction form
    250,372/345,513.36 = 144,388/x
  3. Step 3: Cross multiply
    250,372x = 345,513.36 × 144,388
  4. Step 4: Simplify right side
    250,372x = 49,887,983,023.68
  5. Step 5: Solve for x
    x = 49,887,983,023.68/250,372
  6. Step 6: Final answer
    x = 199,255.44

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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.