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Finding the Fourth Proportional to 437,720.60, 656,070.60 and 201,087.20

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Solution

The fourth proportional to 437,720.60, 656,070.60 and 201,087.20 is: 301,396.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,720.60 : 656,070.60 = 201,087.20 : x
  2. Step 2: Convert to fraction form
    437,720.60/656,070.60 = 201,087.20/x
  3. Step 3: Cross multiply
    437,720.60x = 656,070.60 × 201,087.20
  4. Step 4: Simplify right side
    437,720.60x = 131,927,399,956.32
  5. Step 5: Solve for x
    x = 131,927,399,956.32/437,720.60
  6. Step 6: Final answer
    x = 301,396.37

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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.