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Finding the Fourth Proportional to 400,401.86, 552,499.92 and 239,222.66

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Solution

The fourth proportional to 400,401.86, 552,499.92 and 239,222.66 is: 330,094.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,401.86 : 552,499.92 = 239,222.66 : x
  2. Step 2: Convert to fraction form
    400,401.86/552,499.92 = 239,222.66/x
  3. Step 3: Cross multiply
    400,401.86x = 552,499.92 × 239,222.66
  4. Step 4: Simplify right side
    400,401.86x = 132,170,500,512.19
  5. Step 5: Solve for x
    x = 132,170,500,512.19/400,401.86
  6. Step 6: Final answer
    x = 330,094.62

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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.