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Finding the Fourth Proportional to 250,003.78, 345,014.01 and 136,826.50

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Solution

The fourth proportional to 250,003.78, 345,014.01 and 136,826.50 is: 188,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,003.78 : 345,014.01 = 136,826.50 : x
  2. Step 2: Convert to fraction form
    250,003.78/345,014.01 = 136,826.50/x
  3. Step 3: Cross multiply
    250,003.78x = 345,014.01 × 136,826.50
  4. Step 4: Simplify right side
    250,003.78x = 47,207,059,439.27
  5. Step 5: Solve for x
    x = 47,207,059,439.27/250,003.78
  6. Step 6: Final answer
    x = 188,825.38

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1.5x scale

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.