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Finding the Fourth Proportional to 437,768.60, 656,142.60 and 201,135.20

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Solution

The fourth proportional to 437,768.60, 656,142.60 and 201,135.20 is: 301,468.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,768.60 : 656,142.60 = 201,135.20 : x
  2. Step 2: Convert to fraction form
    437,768.60/656,142.60 = 201,135.20/x
  3. Step 3: Cross multiply
    437,768.60x = 656,142.60 × 201,135.20
  4. Step 4: Simplify right side
    437,768.60x = 131,973,373,079.52
  5. Step 5: Solve for x
    x = 131,973,373,079.52/437,768.60
  6. Step 6: Final answer
    x = 301,468.34

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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.