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Finding the Fourth Proportional to 303,012.69, 454,419 and 100,562.10

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Solution

The fourth proportional to 303,012.69, 454,419 and 100,562.10 is: 150,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,012.69 : 454,419 = 100,562.10 : x
  2. Step 2: Convert to fraction form
    303,012.69/454,419 = 100,562.10/x
  3. Step 3: Cross multiply
    303,012.69x = 454,419 × 100,562.10
  4. Step 4: Simplify right side
    303,012.69x = 45,697,328,919.90
  5. Step 5: Solve for x
    x = 45,697,328,919.90/303,012.69
  6. Step 6: Final answer
    x = 150,809.95

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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.