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Finding the Fourth Proportional to 305,566.43, 421,427.31 and 229,254.86

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Solution

The fourth proportional to 305,566.43, 421,427.31 and 229,254.86 is: 316,180.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,566.43 : 421,427.31 = 229,254.86 : x
  2. Step 2: Convert to fraction form
    305,566.43/421,427.31 = 229,254.86/x
  3. Step 3: Cross multiply
    305,566.43x = 421,427.31 × 229,254.86
  4. Step 4: Simplify right side
    305,566.43x = 96,614,256,777.56
  5. Step 5: Solve for x
    x = 96,614,256,777.56/305,566.43
  6. Step 6: Final answer
    x = 316,180.87

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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.