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Finding the Fourth Proportional to 303,563.18, 455,293.59 and 111,397.87

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Solution

The fourth proportional to 303,563.18, 455,293.59 and 111,397.87 is: 167,078.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,563.18 : 455,293.59 = 111,397.87 : x
  2. Step 2: Convert to fraction form
    303,563.18/455,293.59 = 111,397.87/x
  3. Step 3: Cross multiply
    303,563.18x = 455,293.59 × 111,397.87
  4. Step 4: Simplify right side
    303,563.18x = 50,718,736,150.65
  5. Step 5: Solve for x
    x = 50,718,736,150.65/303,563.18
  6. Step 6: Final answer
    x = 167,078.02

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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.