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Finding the Fourth Proportional to 291,744.79, 437,367.53 and 111,959.21

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Solution

The fourth proportional to 291,744.79, 437,367.53 and 111,959.21 is: 167,843.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,744.79 : 437,367.53 = 111,959.21 : x
  2. Step 2: Convert to fraction form
    291,744.79/437,367.53 = 111,959.21/x
  3. Step 3: Cross multiply
    291,744.79x = 437,367.53 × 111,959.21
  4. Step 4: Simplify right side
    291,744.79x = 48,967,324,511.77
  5. Step 5: Solve for x
    x = 48,967,324,511.77/291,744.79
  6. Step 6: Final answer
    x = 167,843.01

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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.