Home / 303,245.10-454,908.15-103,515.30

Finding the Fourth Proportional to 303,245.10, 454,908.15 and 103,515.30

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Solution

The fourth proportional to 303,245.10, 454,908.15 and 103,515.30 is: 155,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,245.10 : 454,908.15 = 103,515.30 : x
  2. Step 2: Convert to fraction form
    303,245.10/454,908.15 = 103,515.30/x
  3. Step 3: Cross multiply
    303,245.10x = 454,908.15 × 103,515.30
  4. Step 4: Simplify right side
    303,245.10x = 47,089,953,619.70
  5. Step 5: Solve for x
    x = 47,089,953,619.70/303,245.10
  6. Step 6: Final answer
    x = 155,286.78

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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.