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Finding the Fourth Proportional to 303,273.40, 454,910.10 and 288,511.15

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Solution

The fourth proportional to 303,273.40, 454,910.10 and 288,511.15 is: 432,766.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,273.40 : 454,910.10 = 288,511.15 : x
  2. Step 2: Convert to fraction form
    303,273.40/454,910.10 = 288,511.15/x
  3. Step 3: Cross multiply
    303,273.40x = 454,910.10 × 288,511.15
  4. Step 4: Simplify right side
    303,273.40x = 131,246,636,097.62
  5. Step 5: Solve for x
    x = 131,246,636,097.62/303,273.40
  6. Step 6: Final answer
    x = 432,766.73

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1.5x scale

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.