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Finding the Fourth Proportional to 351,636.20, 527,468.70 and 102,318.20

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Solution

The fourth proportional to 351,636.20, 527,468.70 and 102,318.20 is: 153,481.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,636.20 : 527,468.70 = 102,318.20 : x
  2. Step 2: Convert to fraction form
    351,636.20/527,468.70 = 102,318.20/x
  3. Step 3: Cross multiply
    351,636.20x = 527,468.70 × 102,318.20
  4. Step 4: Simplify right side
    351,636.20x = 53,969,647,940.34
  5. Step 5: Solve for x
    x = 53,969,647,940.34/351,636.20
  6. Step 6: Final answer
    x = 153,481.49

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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.