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Finding the Fourth Proportional to 305,561.96, 421,672.41 and 169,597.08

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Solution

The fourth proportional to 305,561.96, 421,672.41 and 169,597.08 is: 234,042.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,561.96 : 421,672.41 = 169,597.08 : x
  2. Step 2: Convert to fraction form
    305,561.96/421,672.41 = 169,597.08/x
  3. Step 3: Cross multiply
    305,561.96x = 421,672.41 × 169,597.08
  4. Step 4: Simplify right side
    305,561.96x = 71,514,411,669.82
  5. Step 5: Solve for x
    x = 71,514,411,669.82/305,561.96
  6. Step 6: Final answer
    x = 234,042.26

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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.