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Finding the Fourth Proportional to 263,652.30, 395,740.92 and 145,379.34

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Solution

The fourth proportional to 263,652.30, 395,740.92 and 145,379.34 is: 218,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,652.30 : 395,740.92 = 145,379.34 : x
  2. Step 2: Convert to fraction form
    263,652.30/395,740.92 = 145,379.34/x
  3. Step 3: Cross multiply
    263,652.30x = 395,740.92 × 145,379.34
  4. Step 4: Simplify right side
    263,652.30x = 57,532,553,760.59
  5. Step 5: Solve for x
    x = 57,532,553,760.59/263,652.30
  6. Step 6: Final answer
    x = 218,213.74

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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.