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Finding the Fourth Proportional to 250,666.11, 345,996.68 and 161,242.11

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Solution

The fourth proportional to 250,666.11, 345,996.68 and 161,242.11 is: 222,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,666.11 : 345,996.68 = 161,242.11 : x
  2. Step 2: Convert to fraction form
    250,666.11/345,996.68 = 161,242.11/x
  3. Step 3: Cross multiply
    250,666.11x = 345,996.68 × 161,242.11
  4. Step 4: Simplify right side
    250,666.11x = 55,789,233,929.98
  5. Step 5: Solve for x
    x = 55,789,233,929.98/250,666.11
  6. Step 6: Final answer
    x = 222,563.93

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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.