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Finding the Fourth Proportional to 271,479.60, 407,219.40 and 113,691.60

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Solution

The fourth proportional to 271,479.60, 407,219.40 and 113,691.60 is: 170,537.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,479.60 : 407,219.40 = 113,691.60 : x
  2. Step 2: Convert to fraction form
    271,479.60/407,219.40 = 113,691.60/x
  3. Step 3: Cross multiply
    271,479.60x = 407,219.40 × 113,691.60
  4. Step 4: Simplify right side
    271,479.60x = 46,297,425,137.04
  5. Step 5: Solve for x
    x = 46,297,425,137.04/271,479.60
  6. Step 6: Final answer
    x = 170,537.40

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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.