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Finding the Fourth Proportional to 361,560.57, 498,901.20 and 200,415.57

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Solution

The fourth proportional to 361,560.57, 498,901.20 and 200,415.57 is: 276,544.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,560.57 : 498,901.20 = 200,415.57 : x
  2. Step 2: Convert to fraction form
    361,560.57/498,901.20 = 200,415.57/x
  3. Step 3: Cross multiply
    361,560.57x = 498,901.20 × 200,415.57
  4. Step 4: Simplify right side
    361,560.57x = 99,987,568,371.68
  5. Step 5: Solve for x
    x = 99,987,568,371.68/361,560.57
  6. Step 6: Final answer
    x = 276,544.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.