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Finding the Fourth Proportional to 288,241.56, 397,939.34 and 191,576.50

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Solution

The fourth proportional to 288,241.56, 397,939.34 and 191,576.50 is: 264,485.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,241.56 : 397,939.34 = 191,576.50 : x
  2. Step 2: Convert to fraction form
    288,241.56/397,939.34 = 191,576.50/x
  3. Step 3: Cross multiply
    288,241.56x = 397,939.34 × 191,576.50
  4. Step 4: Simplify right side
    288,241.56x = 76,235,827,261.91
  5. Step 5: Solve for x
    x = 76,235,827,261.91/288,241.56
  6. Step 6: Final answer
    x = 264,485.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.