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Finding the Fourth Proportional to 303,329.20, 454,993.80 and 103,619.65

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Solution

The fourth proportional to 303,329.20, 454,993.80 and 103,619.65 is: 155,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,329.20 : 454,993.80 = 103,619.65 : x
  2. Step 2: Convert to fraction form
    303,329.20/454,993.80 = 103,619.65/x
  3. Step 3: Cross multiply
    303,329.20x = 454,993.80 × 103,619.65
  4. Step 4: Simplify right side
    303,329.20x = 47,146,298,308.17
  5. Step 5: Solve for x
    x = 47,146,298,308.17/303,329.20
  6. Step 6: Final answer
    x = 155,429.48

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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.