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Finding the Fourth Proportional to 298,448.12, 447,720.77 and 88,107.32

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Solution

The fourth proportional to 298,448.12, 447,720.77 and 88,107.32 is: 132,175.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,448.12 : 447,720.77 = 88,107.32 : x
  2. Step 2: Convert to fraction form
    298,448.12/447,720.77 = 88,107.32/x
  3. Step 3: Cross multiply
    298,448.12x = 447,720.77 × 88,107.32
  4. Step 4: Simplify right side
    298,448.12x = 39,447,475,134.70
  5. Step 5: Solve for x
    x = 39,447,475,134.70/298,448.12
  6. Step 6: Final answer
    x = 132,175.32

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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.