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Finding the Fourth Proportional to 235,987.47, 353,700.08 and 135,940.42

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Solution

The fourth proportional to 235,987.47, 353,700.08 and 135,940.42 is: 203,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,987.47 : 353,700.08 = 135,940.42 : x
  2. Step 2: Convert to fraction form
    235,987.47/353,700.08 = 135,940.42/x
  3. Step 3: Cross multiply
    235,987.47x = 353,700.08 × 135,940.42
  4. Step 4: Simplify right side
    235,987.47x = 48,082,135,865.28
  5. Step 5: Solve for x
    x = 48,082,135,865.28/235,987.47
  6. Step 6: Final answer
    x = 203,748.68

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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.