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Finding the Fourth Proportional to 228,370.60, 342,863.70 and 133,697.80

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Solution

The fourth proportional to 228,370.60, 342,863.70 and 133,697.80 is: 200,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,370.60 : 342,863.70 = 133,697.80 : x
  2. Step 2: Convert to fraction form
    228,370.60/342,863.70 = 133,697.80/x
  3. Step 3: Cross multiply
    228,370.60x = 342,863.70 × 133,697.80
  4. Step 4: Simplify right side
    228,370.60x = 45,840,122,389.86
  5. Step 5: Solve for x
    x = 45,840,122,389.86/228,370.60
  6. Step 6: Final answer
    x = 200,726.90

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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.