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Finding the Fourth Proportional to 266,714.85, 400,072.62 and 108,943.35

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Solution

The fourth proportional to 266,714.85, 400,072.62 and 108,943.35 is: 163,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,714.85 : 400,072.62 = 108,943.35 : x
  2. Step 2: Convert to fraction form
    266,714.85/400,072.62 = 108,943.35/x
  3. Step 3: Cross multiply
    266,714.85x = 400,072.62 × 108,943.35
  4. Step 4: Simplify right side
    266,714.85x = 43,585,251,466.08
  5. Step 5: Solve for x
    x = 43,585,251,466.08/266,714.85
  6. Step 6: Final answer
    x = 163,415.17

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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.