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Finding the Fourth Proportional to 303,344.70, 455,017.05 and 103,635.15

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Solution

The fourth proportional to 303,344.70, 455,017.05 and 103,635.15 is: 155,452.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,344.70 : 455,017.05 = 103,635.15 : x
  2. Step 2: Convert to fraction form
    303,344.70/455,017.05 = 103,635.15/x
  3. Step 3: Cross multiply
    303,344.70x = 455,017.05 × 103,635.15
  4. Step 4: Simplify right side
    303,344.70x = 47,155,760,229.31
  5. Step 5: Solve for x
    x = 47,155,760,229.31/303,344.70
  6. Step 6: Final answer
    x = 155,452.73

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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.