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Finding the Fourth Proportional to 347,839.80, 521,468.10 and 181,627.80

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Solution

The fourth proportional to 347,839.80, 521,468.10 and 181,627.80 is: 272,289.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,839.80 : 521,468.10 = 181,627.80 : x
  2. Step 2: Convert to fraction form
    347,839.80/521,468.10 = 181,627.80/x
  3. Step 3: Cross multiply
    347,839.80x = 521,468.10 × 181,627.80
  4. Step 4: Simplify right side
    347,839.80x = 94,713,103,773.18
  5. Step 5: Solve for x
    x = 94,713,103,773.18/347,839.80
  6. Step 6: Final answer
    x = 272,289.44

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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.