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Finding the Fourth Proportional to 200,672.58, 301,025.24 and 100,781.40

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Solution

The fourth proportional to 200,672.58, 301,025.24 and 100,781.40 is: 151,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,672.58 : 301,025.24 = 100,781.40 : x
  2. Step 2: Convert to fraction form
    200,672.58/301,025.24 = 100,781.40/x
  3. Step 3: Cross multiply
    200,672.58x = 301,025.24 × 100,781.40
  4. Step 4: Simplify right side
    200,672.58x = 30,337,745,122.54
  5. Step 5: Solve for x
    x = 30,337,745,122.54/200,672.58
  6. Step 6: Final answer
    x = 151,180.32

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1.5x scale

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.