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Finding the Fourth Proportional to 481,686.35, 722,567.79 and 161,839.42

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Solution

The fourth proportional to 481,686.35, 722,567.79 and 161,839.42 is: 242,771.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,686.35 : 722,567.79 = 161,839.42 : x
  2. Step 2: Convert to fraction form
    481,686.35/722,567.79 = 161,839.42/x
  3. Step 3: Cross multiply
    481,686.35x = 722,567.79 × 161,839.42
  4. Step 4: Simplify right side
    481,686.35x = 116,939,950,237.86
  5. Step 5: Solve for x
    x = 116,939,950,237.86/481,686.35
  6. Step 6: Final answer
    x = 242,771.99

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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.