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Finding the Fourth Proportional to 303,217.32, 454,930.84 and 103,678.18

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Solution

The fourth proportional to 303,217.32, 454,930.84 and 103,678.18 is: 155,553.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,217.32 : 454,930.84 = 103,678.18 : x
  2. Step 2: Convert to fraction form
    303,217.32/454,930.84 = 103,678.18/x
  3. Step 3: Cross multiply
    303,217.32x = 454,930.84 × 103,678.18
  4. Step 4: Simplify right side
    303,217.32x = 47,166,401,517.07
  5. Step 5: Solve for x
    x = 47,166,401,517.07/303,217.32
  6. Step 6: Final answer
    x = 155,553.12

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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.