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Finding the Fourth Proportional to 304,318.76, 419,910.90 and 191,294.60

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Solution

The fourth proportional to 304,318.76, 419,910.90 and 191,294.60 is: 263,955.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,318.76 : 419,910.90 = 191,294.60 : x
  2. Step 2: Convert to fraction form
    304,318.76/419,910.90 = 191,294.60/x
  3. Step 3: Cross multiply
    304,318.76x = 419,910.90 × 191,294.60
  4. Step 4: Simplify right side
    304,318.76x = 80,326,687,651.14
  5. Step 5: Solve for x
    x = 80,326,687,651.14/304,318.76
  6. Step 6: Final answer
    x = 263,955.75

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1.5x scale

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.