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Finding the Fourth Proportional to 227,911.60, 342,175.20 and 133,238.80

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Solution

The fourth proportional to 227,911.60, 342,175.20 and 133,238.80 is: 200,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,911.60 : 342,175.20 = 133,238.80 : x
  2. Step 2: Convert to fraction form
    227,911.60/342,175.20 = 133,238.80/x
  3. Step 3: Cross multiply
    227,911.60x = 342,175.20 × 133,238.80
  4. Step 4: Simplify right side
    227,911.60x = 45,591,013,037.76
  5. Step 5: Solve for x
    x = 45,591,013,037.76/227,911.60
  6. Step 6: Final answer
    x = 200,038.14

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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.