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Finding the Fourth Proportional to 252,597.80, 378,021.90 and 231,602.60

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Solution

The fourth proportional to 252,597.80, 378,021.90 and 231,602.60 is: 346,601.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,597.80 : 378,021.90 = 231,602.60 : x
  2. Step 2: Convert to fraction form
    252,597.80/378,021.90 = 231,602.60/x
  3. Step 3: Cross multiply
    252,597.80x = 378,021.90 × 231,602.60
  4. Step 4: Simplify right side
    252,597.80x = 87,550,854,896.94
  5. Step 5: Solve for x
    x = 87,550,854,896.94/252,597.80
  6. Step 6: Final answer
    x = 346,601.81

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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.