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Finding the Fourth Proportional to 291,961.60, 437,814.40 and 134,137.60

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Solution

The fourth proportional to 291,961.60, 437,814.40 and 134,137.60 is: 201,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,961.60 : 437,814.40 = 134,137.60 : x
  2. Step 2: Convert to fraction form
    291,961.60/437,814.40 = 134,137.60/x
  3. Step 3: Cross multiply
    291,961.60x = 437,814.40 × 134,137.60
  4. Step 4: Simplify right side
    291,961.60x = 58,727,372,861.44
  5. Step 5: Solve for x
    x = 58,727,372,861.44/291,961.60
  6. Step 6: Final answer
    x = 201,147.59

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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.