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Finding the Fourth Proportional to 266,783.89, 400,146.34 and 67,104.36

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Solution

The fourth proportional to 266,783.89, 400,146.34 and 67,104.36 is: 100,649.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,783.89 : 400,146.34 = 67,104.36 : x
  2. Step 2: Convert to fraction form
    266,783.89/400,146.34 = 67,104.36/x
  3. Step 3: Cross multiply
    266,783.89x = 400,146.34 × 67,104.36
  4. Step 4: Simplify right side
    266,783.89x = 26,851,564,052.04
  5. Step 5: Solve for x
    x = 26,851,564,052.04/266,783.89
  6. Step 6: Final answer
    x = 100,649.12

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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.