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Finding the Fourth Proportional to 491,365.59, 737,052.49 and 154,398.78

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Solution

The fourth proportional to 491,365.59, 737,052.49 and 154,398.78 is: 231,599.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,365.59 : 737,052.49 = 154,398.78 : x
  2. Step 2: Convert to fraction form
    491,365.59/737,052.49 = 154,398.78/x
  3. Step 3: Cross multiply
    491,365.59x = 737,052.49 × 154,398.78
  4. Step 4: Simplify right side
    491,365.59x = 113,800,007,083.67
  5. Step 5: Solve for x
    x = 113,800,007,083.67/491,365.59
  6. Step 6: Final answer
    x = 231,599.46

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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.