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Finding the Fourth Proportional to 228,605.20, 342,130.20 and 200,611.60

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Solution

The fourth proportional to 228,605.20, 342,130.20 and 200,611.60 is: 300,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,605.20 : 342,130.20 = 200,611.60 : x
  2. Step 2: Convert to fraction form
    228,605.20/342,130.20 = 200,611.60/x
  3. Step 3: Cross multiply
    228,605.20x = 342,130.20 × 200,611.60
  4. Step 4: Simplify right side
    228,605.20x = 68,635,286,830.32
  5. Step 5: Solve for x
    x = 68,635,286,830.32/228,605.20
  6. Step 6: Final answer
    x = 300,235.02

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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.