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Finding the Fourth Proportional to 359,787.79, 496,503.97 and 198,639.42

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Solution

The fourth proportional to 359,787.79, 496,503.97 and 198,639.42 is: 274,120.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,787.79 : 496,503.97 = 198,639.42 : x
  2. Step 2: Convert to fraction form
    359,787.79/496,503.97 = 198,639.42/x
  3. Step 3: Cross multiply
    359,787.79x = 496,503.97 × 198,639.42
  4. Step 4: Simplify right side
    359,787.79x = 98,625,260,628.50
  5. Step 5: Solve for x
    x = 98,625,260,628.50/359,787.79
  6. Step 6: Final answer
    x = 274,120.64

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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.