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Finding the Fourth Proportional to 291,343.25, 437,015.01 and 80,983.01

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Solution

The fourth proportional to 291,343.25, 437,015.01 and 80,983.01 is: 121,474.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,343.25 : 437,015.01 = 80,983.01 : x
  2. Step 2: Convert to fraction form
    291,343.25/437,015.01 = 80,983.01/x
  3. Step 3: Cross multiply
    291,343.25x = 437,015.01 × 80,983.01
  4. Step 4: Simplify right side
    291,343.25x = 35,390,790,924.98
  5. Step 5: Solve for x
    x = 35,390,790,924.98/291,343.25
  6. Step 6: Final answer
    x = 121,474.55

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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.