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Finding the Fourth Proportional to 303,143.39, 454,589.99 and 103,479.87

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Solution

The fourth proportional to 303,143.39, 454,589.99 and 103,479.87 is: 155,177.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,143.39 : 454,589.99 = 103,479.87 : x
  2. Step 2: Convert to fraction form
    303,143.39/454,589.99 = 103,479.87/x
  3. Step 3: Cross multiply
    303,143.39x = 454,589.99 × 103,479.87
  4. Step 4: Simplify right side
    303,143.39x = 47,040,913,068.50
  5. Step 5: Solve for x
    x = 47,040,913,068.50/303,143.39
  6. Step 6: Final answer
    x = 155,177.10

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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.