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Finding the Fourth Proportional to 291,047.52, 436,571.38 and 130,936.44

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Solution

The fourth proportional to 291,047.52, 436,571.38 and 130,936.44 is: 196,404.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,047.52 : 436,571.38 = 130,936.44 : x
  2. Step 2: Convert to fraction form
    291,047.52/436,571.38 = 130,936.44/x
  3. Step 3: Cross multiply
    291,047.52x = 436,571.38 × 130,936.44
  4. Step 4: Simplify right side
    291,047.52x = 57,163,102,303.09
  5. Step 5: Solve for x
    x = 57,163,102,303.09/291,047.52
  6. Step 6: Final answer
    x = 196,404.70

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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.