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Finding the Fourth Proportional to 291,815.80, 437,723.70 and 151,847.80

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Solution

The fourth proportional to 291,815.80, 437,723.70 and 151,847.80 is: 227,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,815.80 : 437,723.70 = 151,847.80 : x
  2. Step 2: Convert to fraction form
    291,815.80/437,723.70 = 151,847.80/x
  3. Step 3: Cross multiply
    291,815.80x = 437,723.70 × 151,847.80
  4. Step 4: Simplify right side
    291,815.80x = 66,467,380,852.86
  5. Step 5: Solve for x
    x = 66,467,380,852.86/291,815.80
  6. Step 6: Final answer
    x = 227,771.70

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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.