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Finding the Fourth Proportional to 271,277.60, 406,954.80 and 84,269.60

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Solution

The fourth proportional to 271,277.60, 406,954.80 and 84,269.60 is: 126,416.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,277.60 : 406,954.80 = 84,269.60 : x
  2. Step 2: Convert to fraction form
    271,277.60/406,954.80 = 84,269.60/x
  3. Step 3: Cross multiply
    271,277.60x = 406,954.80 × 84,269.60
  4. Step 4: Simplify right side
    271,277.60x = 34,293,918,214.08
  5. Step 5: Solve for x
    x = 34,293,918,214.08/271,277.60
  6. Step 6: Final answer
    x = 126,416.33

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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.