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Finding the Fourth Proportional to 252,405.05, 378,610.87 and 83,925.37

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Solution

The fourth proportional to 252,405.05, 378,610.87 and 83,925.37 is: 125,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,405.05 : 378,610.87 = 83,925.37 : x
  2. Step 2: Convert to fraction form
    252,405.05/378,610.87 = 83,925.37/x
  3. Step 3: Cross multiply
    252,405.05x = 378,610.87 × 83,925.37
  4. Step 4: Simplify right side
    252,405.05x = 31,775,055,405.86
  5. Step 5: Solve for x
    x = 31,775,055,405.86/252,405.05
  6. Step 6: Final answer
    x = 125,889.15

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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.