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Finding the Fourth Proportional to 303,414.80, 455,122.20 and 103,741.70

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Solution

The fourth proportional to 303,414.80, 455,122.20 and 103,741.70 is: 155,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,414.80 : 455,122.20 = 103,741.70 : x
  2. Step 2: Convert to fraction form
    303,414.80/455,122.20 = 103,741.70/x
  3. Step 3: Cross multiply
    303,414.80x = 455,122.20 × 103,741.70
  4. Step 4: Simplify right side
    303,414.80x = 47,215,150,735.74
  5. Step 5: Solve for x
    x = 47,215,150,735.74/303,414.80
  6. Step 6: Final answer
    x = 155,612.55

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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.