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Finding the Fourth Proportional to 491,498.40, 737,247.60 and 159,074.40

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Solution

The fourth proportional to 491,498.40, 737,247.60 and 159,074.40 is: 238,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,498.40 : 737,247.60 = 159,074.40 : x
  2. Step 2: Convert to fraction form
    491,498.40/737,247.60 = 159,074.40/x
  3. Step 3: Cross multiply
    491,498.40x = 737,247.60 × 159,074.40
  4. Step 4: Simplify right side
    491,498.40x = 117,277,219,621.44
  5. Step 5: Solve for x
    x = 117,277,219,621.44/491,498.40
  6. Step 6: Final answer
    x = 238,611.60

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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.