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Finding the Fourth Proportional to 250,035.86, 345,049.29 and 136,858.50

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Solution

The fourth proportional to 250,035.86, 345,049.29 and 136,858.50 is: 188,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,035.86 : 345,049.29 = 136,858.50 : x
  2. Step 2: Convert to fraction form
    250,035.86/345,049.29 = 136,858.50/x
  3. Step 3: Cross multiply
    250,035.86x = 345,049.29 × 136,858.50
  4. Step 4: Simplify right side
    250,035.86x = 47,222,928,255.47
  5. Step 5: Solve for x
    x = 47,222,928,255.47/250,035.86
  6. Step 6: Final answer
    x = 188,864.62

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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.