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Finding the Fourth Proportional to 349,766.48, 482,677.80 and 198,872.72

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Solution

The fourth proportional to 349,766.48, 482,677.80 and 198,872.72 is: 274,444.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,766.48 : 482,677.80 = 198,872.72 : x
  2. Step 2: Convert to fraction form
    349,766.48/482,677.80 = 198,872.72/x
  3. Step 3: Cross multiply
    349,766.48x = 482,677.80 × 198,872.72
  4. Step 4: Simplify right side
    349,766.48x = 95,991,446,969.62
  5. Step 5: Solve for x
    x = 95,991,446,969.62/349,766.48
  6. Step 6: Final answer
    x = 274,444.39

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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.