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Finding the Fourth Proportional to 437,722.60, 656,073.60 and 201,089.20

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Solution

The fourth proportional to 437,722.60, 656,073.60 and 201,089.20 is: 301,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,722.60 : 656,073.60 = 201,089.20 : x
  2. Step 2: Convert to fraction form
    437,722.60/656,073.60 = 201,089.20/x
  3. Step 3: Cross multiply
    437,722.60x = 656,073.60 × 201,089.20
  4. Step 4: Simplify right side
    437,722.60x = 131,929,315,365.12
  5. Step 5: Solve for x
    x = 131,929,315,365.12/437,722.60
  6. Step 6: Final answer
    x = 301,399.37

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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.