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Finding the Fourth Proportional to 356,355.06, 491,770.02 and 195,215.88

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Solution

The fourth proportional to 356,355.06, 491,770.02 and 195,215.88 is: 269,397.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,355.06 : 491,770.02 = 195,215.88 : x
  2. Step 2: Convert to fraction form
    356,355.06/491,770.02 = 195,215.88/x
  3. Step 3: Cross multiply
    356,355.06x = 491,770.02 × 195,215.88
  4. Step 4: Simplify right side
    356,355.06x = 96,001,317,211.92
  5. Step 5: Solve for x
    x = 96,001,317,211.92/356,355.06
  6. Step 6: Final answer
    x = 269,397.93

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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.