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Finding the Fourth Proportional to 275,431.21, 413,011.49 and 161,608.12

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Solution

The fourth proportional to 275,431.21, 413,011.49 and 161,608.12 is: 242,332.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,431.21 : 413,011.49 = 161,608.12 : x
  2. Step 2: Convert to fraction form
    275,431.21/413,011.49 = 161,608.12/x
  3. Step 3: Cross multiply
    275,431.21x = 413,011.49 × 161,608.12
  4. Step 4: Simplify right side
    275,431.21x = 66,746,008,596.73
  5. Step 5: Solve for x
    x = 66,746,008,596.73/275,431.21
  6. Step 6: Final answer
    x = 242,332.77

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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.