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Finding the Fourth Proportional to 266,632.58, 399,969.52 and 89,140.26

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Solution

The fourth proportional to 266,632.58, 399,969.52 and 89,140.26 is: 133,717.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,632.58 : 399,969.52 = 89,140.26 : x
  2. Step 2: Convert to fraction form
    266,632.58/399,969.52 = 89,140.26/x
  3. Step 3: Cross multiply
    266,632.58x = 399,969.52 × 89,140.26
  4. Step 4: Simplify right side
    266,632.58x = 35,653,387,004.88
  5. Step 5: Solve for x
    x = 35,653,387,004.88/266,632.58
  6. Step 6: Final answer
    x = 133,717.29

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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.