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Finding the Fourth Proportional to 202,178.20, 302,684.10 and 178,850.20

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Solution

The fourth proportional to 202,178.20, 302,684.10 and 178,850.20 is: 267,759.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,178.20 : 302,684.10 = 178,850.20 : x
  2. Step 2: Convert to fraction form
    202,178.20/302,684.10 = 178,850.20/x
  3. Step 3: Cross multiply
    202,178.20x = 302,684.10 × 178,850.20
  4. Step 4: Simplify right side
    202,178.20x = 54,135,111,821.82
  5. Step 5: Solve for x
    x = 54,135,111,821.82/202,178.20
  6. Step 6: Final answer
    x = 267,759.39

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1.5x scale

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.