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Finding the Fourth Proportional to 150,369.64, 225,538.57 and 79,263.78

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Solution

The fourth proportional to 150,369.64, 225,538.57 and 79,263.78 is: 118,887.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,369.64 : 225,538.57 = 79,263.78 : x
  2. Step 2: Convert to fraction form
    150,369.64/225,538.57 = 79,263.78/x
  3. Step 3: Cross multiply
    150,369.64x = 225,538.57 × 79,263.78
  4. Step 4: Simplify right side
    150,369.64x = 17,877,039,593.99
  5. Step 5: Solve for x
    x = 17,877,039,593.99/150,369.64
  6. Step 6: Final answer
    x = 118,887.29

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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.