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Finding the Fourth Proportional to 356,354.63, 491,769.51 and 195,215.48

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Solution

The fourth proportional to 356,354.63, 491,769.51 and 195,215.48 is: 269,397.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,354.63 : 491,769.51 = 195,215.48 : x
  2. Step 2: Convert to fraction form
    356,354.63/491,769.51 = 195,215.48/x
  3. Step 3: Cross multiply
    356,354.63x = 491,769.51 × 195,215.48
  4. Step 4: Simplify right side
    356,354.63x = 96,001,020,944.01
  5. Step 5: Solve for x
    x = 96,001,020,944.01/356,354.63
  6. Step 6: Final answer
    x = 269,397.43

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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.