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Finding the Fourth Proportional to 231,221.99, 319,095.65 and 134,425.37

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Solution

The fourth proportional to 231,221.99, 319,095.65 and 134,425.37 is: 185,512.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,221.99 : 319,095.65 = 134,425.37 : x
  2. Step 2: Convert to fraction form
    231,221.99/319,095.65 = 134,425.37/x
  3. Step 3: Cross multiply
    231,221.99x = 319,095.65 × 134,425.37
  4. Step 4: Simplify right side
    231,221.99x = 42,894,550,816.64
  5. Step 5: Solve for x
    x = 42,894,550,816.64/231,221.99
  6. Step 6: Final answer
    x = 185,512.42

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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.