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Finding the Fourth Proportional to 303,539.58, 455,377.05 and 93,198.78

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Solution

The fourth proportional to 303,539.58, 455,377.05 and 93,198.78 is: 139,818.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,539.58 : 455,377.05 = 93,198.78 : x
  2. Step 2: Convert to fraction form
    303,539.58/455,377.05 = 93,198.78/x
  3. Step 3: Cross multiply
    303,539.58x = 455,377.05 × 93,198.78
  4. Step 4: Simplify right side
    303,539.58x = 42,440,585,500.00
  5. Step 5: Solve for x
    x = 42,440,585,500.00/303,539.58
  6. Step 6: Final answer
    x = 139,818.95

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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.