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Finding the Fourth Proportional to 437,496.30, 656,163.45 and 121,887.90

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Solution

The fourth proportional to 437,496.30, 656,163.45 and 121,887.90 is: 182,809.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,496.30 : 656,163.45 = 121,887.90 : x
  2. Step 2: Convert to fraction form
    437,496.30/656,163.45 = 121,887.90/x
  3. Step 3: Cross multiply
    437,496.30x = 656,163.45 × 121,887.90
  4. Step 4: Simplify right side
    437,496.30x = 79,978,384,977.26
  5. Step 5: Solve for x
    x = 79,978,384,977.26/437,496.30
  6. Step 6: Final answer
    x = 182,809.28

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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.