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Finding the Fourth Proportional to 291,391.36, 437,157.03 and 111,473.84

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Solution

The fourth proportional to 291,391.36, 437,157.03 and 111,473.84 is: 167,237.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,391.36 : 437,157.03 = 111,473.84 : x
  2. Step 2: Convert to fraction form
    291,391.36/437,157.03 = 111,473.84/x
  3. Step 3: Cross multiply
    291,391.36x = 437,157.03 × 111,473.84
  4. Step 4: Simplify right side
    291,391.36x = 48,731,573,586.47
  5. Step 5: Solve for x
    x = 48,731,573,586.47/291,391.36
  6. Step 6: Final answer
    x = 167,237.54

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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.