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Finding the Fourth Proportional to 303,589.91, 455,350.23 and 103,884

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Solution

The fourth proportional to 303,589.91, 455,350.23 and 103,884 is: 155,814.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,589.91 : 455,350.23 = 103,884 : x
  2. Step 2: Convert to fraction form
    303,589.91/455,350.23 = 103,884/x
  3. Step 3: Cross multiply
    303,589.91x = 455,350.23 × 103,884
  4. Step 4: Simplify right side
    303,589.91x = 47,303,603,293.32
  5. Step 5: Solve for x
    x = 47,303,603,293.32/303,589.91
  6. Step 6: Final answer
    x = 155,814.15

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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.