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Finding the Fourth Proportional to 454,080.60, 681,120.90 and 188,360.10

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Solution

The fourth proportional to 454,080.60, 681,120.90 and 188,360.10 is: 282,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,080.60 : 681,120.90 = 188,360.10 : x
  2. Step 2: Convert to fraction form
    454,080.60/681,120.90 = 188,360.10/x
  3. Step 3: Cross multiply
    454,080.60x = 681,120.90 × 188,360.10
  4. Step 4: Simplify right side
    454,080.60x = 128,296,000,836.09
  5. Step 5: Solve for x
    x = 128,296,000,836.09/454,080.60
  6. Step 6: Final answer
    x = 282,540.15

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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.