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Finding the Fourth Proportional to 303,362.10, 454,999.95 and 103,691.70

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Solution

The fourth proportional to 303,362.10, 454,999.95 and 103,691.70 is: 155,522.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,362.10 : 454,999.95 = 103,691.70 : x
  2. Step 2: Convert to fraction form
    303,362.10/454,999.95 = 103,691.70/x
  3. Step 3: Cross multiply
    303,362.10x = 454,999.95 × 103,691.70
  4. Step 4: Simplify right side
    303,362.10x = 47,179,718,315.42
  5. Step 5: Solve for x
    x = 47,179,718,315.42/303,362.10
  6. Step 6: Final answer
    x = 155,522.78

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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.