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Finding the Fourth Proportional to 228,397.01, 315,186.26 and 131,565.56

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Solution

The fourth proportional to 228,397.01, 315,186.26 and 131,565.56 is: 181,559.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,397.01 : 315,186.26 = 131,565.56 : x
  2. Step 2: Convert to fraction form
    228,397.01/315,186.26 = 131,565.56/x
  3. Step 3: Cross multiply
    228,397.01x = 315,186.26 × 131,565.56
  4. Step 4: Simplify right side
    228,397.01x = 41,467,654,567.45
  5. Step 5: Solve for x
    x = 41,467,654,567.45/228,397.01
  6. Step 6: Final answer
    x = 181,559.54

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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.