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Finding the Fourth Proportional to 291,503.26, 437,321.85 and 151,230.70

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Solution

The fourth proportional to 291,503.26, 437,321.85 and 151,230.70 is: 226,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,503.26 : 437,321.85 = 151,230.70 : x
  2. Step 2: Convert to fraction form
    291,503.26/437,321.85 = 151,230.70/x
  3. Step 3: Cross multiply
    291,503.26x = 437,321.85 × 151,230.70
  4. Step 4: Simplify right side
    291,503.26x = 66,136,489,500.80
  5. Step 5: Solve for x
    x = 66,136,489,500.80/291,503.26
  6. Step 6: Final answer
    x = 226,880.79

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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.