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Finding the Fourth Proportional to 311,265.70, 429,588.39 and 182,243.50

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Solution

The fourth proportional to 311,265.70, 429,588.39 and 182,243.50 is: 251,520.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,265.70 : 429,588.39 = 182,243.50 : x
  2. Step 2: Convert to fraction form
    311,265.70/429,588.39 = 182,243.50/x
  3. Step 3: Cross multiply
    311,265.70x = 429,588.39 × 182,243.50
  4. Step 4: Simplify right side
    311,265.70x = 78,289,691,752.97
  5. Step 5: Solve for x
    x = 78,289,691,752.97/311,265.70
  6. Step 6: Final answer
    x = 251,520.46

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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.