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Finding the Fourth Proportional to 203,342.28, 304,890.30 and 91,001.58

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Solution

The fourth proportional to 203,342.28, 304,890.30 and 91,001.58 is: 136,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,342.28 : 304,890.30 = 91,001.58 : x
  2. Step 2: Convert to fraction form
    203,342.28/304,890.30 = 91,001.58/x
  3. Step 3: Cross multiply
    203,342.28x = 304,890.30 × 91,001.58
  4. Step 4: Simplify right side
    203,342.28x = 27,745,499,026.67
  5. Step 5: Solve for x
    x = 27,745,499,026.67/203,342.28
  6. Step 6: Final answer
    x = 136,447.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.