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Finding the Fourth Proportional to 491,540.40, 737,310.60 and 159,116.40

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Solution

The fourth proportional to 491,540.40, 737,310.60 and 159,116.40 is: 238,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,540.40 : 737,310.60 = 159,116.40 : x
  2. Step 2: Convert to fraction form
    491,540.40/737,310.60 = 159,116.40/x
  3. Step 3: Cross multiply
    491,540.40x = 737,310.60 × 159,116.40
  4. Step 4: Simplify right side
    491,540.40x = 117,318,208,353.84
  5. Step 5: Solve for x
    x = 117,318,208,353.84/491,540.40
  6. Step 6: Final answer
    x = 238,674.60

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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.