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Finding the Fourth Proportional to 491,968.89, 737,953.34 and 136,992.06

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Solution

The fourth proportional to 491,968.89, 737,953.34 and 136,992.06 is: 205,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,968.89 : 737,953.34 = 136,992.06 : x
  2. Step 2: Convert to fraction form
    491,968.89/737,953.34 = 136,992.06/x
  3. Step 3: Cross multiply
    491,968.89x = 737,953.34 × 136,992.06
  4. Step 4: Simplify right side
    491,968.89x = 101,093,747,545.52
  5. Step 5: Solve for x
    x = 101,093,747,545.52/491,968.89
  6. Step 6: Final answer
    x = 205,488.09

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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.