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Finding the Fourth Proportional to 371,884.34, 557,821.64 and 91,404.02

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Solution

The fourth proportional to 371,884.34, 557,821.64 and 91,404.02 is: 137,104.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,884.34 : 557,821.64 = 91,404.02 : x
  2. Step 2: Convert to fraction form
    371,884.34/557,821.64 = 91,404.02/x
  3. Step 3: Cross multiply
    371,884.34x = 557,821.64 × 91,404.02
  4. Step 4: Simplify right side
    371,884.34x = 50,987,140,338.99
  5. Step 5: Solve for x
    x = 50,987,140,338.99/371,884.34
  6. Step 6: Final answer
    x = 137,104.83

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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.