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Finding the Fourth Proportional to 300,513.76, 450,858.48 and 90,183.04

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Solution

The fourth proportional to 300,513.76, 450,858.48 and 90,183.04 is: 135,300.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,513.76 : 450,858.48 = 90,183.04 : x
  2. Step 2: Convert to fraction form
    300,513.76/450,858.48 = 90,183.04/x
  3. Step 3: Cross multiply
    300,513.76x = 450,858.48 × 90,183.04
  4. Step 4: Simplify right side
    300,513.76x = 40,659,788,336.18
  5. Step 5: Solve for x
    x = 40,659,788,336.18/300,513.76
  6. Step 6: Final answer
    x = 135,300.92

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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.