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Finding the Fourth Proportional to 201,697.90, 302,546.85 and 68,728.30

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Solution

The fourth proportional to 201,697.90, 302,546.85 and 68,728.30 is: 103,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,697.90 : 302,546.85 = 68,728.30 : x
  2. Step 2: Convert to fraction form
    201,697.90/302,546.85 = 68,728.30/x
  3. Step 3: Cross multiply
    201,697.90x = 302,546.85 × 68,728.30
  4. Step 4: Simplify right side
    201,697.90x = 20,793,530,670.86
  5. Step 5: Solve for x
    x = 20,793,530,670.86/201,697.90
  6. Step 6: Final answer
    x = 103,092.45

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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.