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Finding the Fourth Proportional to 243,241.25, 365,027.99 and 85,469.72

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Solution

The fourth proportional to 243,241.25, 365,027.99 and 85,469.72 is: 128,262.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,241.25 : 365,027.99 = 85,469.72 : x
  2. Step 2: Convert to fraction form
    243,241.25/365,027.99 = 85,469.72/x
  3. Step 3: Cross multiply
    243,241.25x = 365,027.99 × 85,469.72
  4. Step 4: Simplify right side
    243,241.25x = 31,198,837,844.97
  5. Step 5: Solve for x
    x = 31,198,837,844.97/243,241.25
  6. Step 6: Final answer
    x = 128,262.94

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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.