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Finding the Fourth Proportional to 266,663.87, 399,996.18 and 108,892.32

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Solution

The fourth proportional to 266,663.87, 399,996.18 and 108,892.32 is: 163,338.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,663.87 : 399,996.18 = 108,892.32 : x
  2. Step 2: Convert to fraction form
    266,663.87/399,996.18 = 108,892.32/x
  3. Step 3: Cross multiply
    266,663.87x = 399,996.18 × 108,892.32
  4. Step 4: Simplify right side
    266,663.87x = 43,556,512,031.34
  5. Step 5: Solve for x
    x = 43,556,512,031.34/266,663.87
  6. Step 6: Final answer
    x = 163,338.64

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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.