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Finding the Fourth Proportional to 251,998.56, 377,736.48 and 133,639.20

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Solution

The fourth proportional to 251,998.56, 377,736.48 and 133,639.20 is: 200,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,998.56 : 377,736.48 = 133,639.20 : x
  2. Step 2: Convert to fraction form
    251,998.56/377,736.48 = 133,639.20/x
  3. Step 3: Cross multiply
    251,998.56x = 377,736.48 × 133,639.20
  4. Step 4: Simplify right side
    251,998.56x = 50,480,400,998.02
  5. Step 5: Solve for x
    x = 50,480,400,998.02/251,998.56
  6. Step 6: Final answer
    x = 200,320.20

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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.