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Finding the Fourth Proportional to 291,670.30, 437,161.54 and 131,558.82

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Solution

The fourth proportional to 291,670.30, 437,161.54 and 131,558.82 is: 197,183.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,670.30 : 437,161.54 = 131,558.82 : x
  2. Step 2: Convert to fraction form
    291,670.30/437,161.54 = 131,558.82/x
  3. Step 3: Cross multiply
    291,670.30x = 437,161.54 × 131,558.82
  4. Step 4: Simplify right side
    291,670.30x = 57,512,456,351.78
  5. Step 5: Solve for x
    x = 57,512,456,351.78/291,670.30
  6. Step 6: Final answer
    x = 197,183.11

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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.