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Finding the Fourth Proportional to 361,485.60, 498,850.12 and 200,364.86

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Solution

The fourth proportional to 361,485.60, 498,850.12 and 200,364.86 is: 276,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,485.60 : 498,850.12 = 200,364.86 : x
  2. Step 2: Convert to fraction form
    361,485.60/498,850.12 = 200,364.86/x
  3. Step 3: Cross multiply
    361,485.60x = 498,850.12 × 200,364.86
  4. Step 4: Simplify right side
    361,485.60x = 99,952,034,454.78
  5. Step 5: Solve for x
    x = 99,952,034,454.78/361,485.60
  6. Step 6: Final answer
    x = 276,503.50

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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.