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Finding the Fourth Proportional to 303,310.30, 454,987.05 and 92,947.90

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Solution

The fourth proportional to 303,310.30, 454,987.05 and 92,947.90 is: 139,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,310.30 : 454,987.05 = 92,947.90 : x
  2. Step 2: Convert to fraction form
    303,310.30/454,987.05 = 92,947.90/x
  3. Step 3: Cross multiply
    303,310.30x = 454,987.05 × 92,947.90
  4. Step 4: Simplify right side
    303,310.30x = 42,290,090,824.70
  5. Step 5: Solve for x
    x = 42,290,090,824.70/303,310.30
  6. Step 6: Final answer
    x = 139,428.47

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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.