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Finding the Fourth Proportional to 318,881.27, 440,076.11 and 175,641.27

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Solution

The fourth proportional to 318,881.27, 440,076.11 and 175,641.27 is: 242,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,881.27 : 440,076.11 = 175,641.27 : x
  2. Step 2: Convert to fraction form
    318,881.27/440,076.11 = 175,641.27/x
  3. Step 3: Cross multiply
    318,881.27x = 440,076.11 × 175,641.27
  4. Step 4: Simplify right side
    318,881.27x = 77,295,525,978.85
  5. Step 5: Solve for x
    x = 77,295,525,978.85/318,881.27
  6. Step 6: Final answer
    x = 242,395.95

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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.