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Finding the Fourth Proportional to 266,969.82, 400,468.05 and 79,963.50

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Solution

The fourth proportional to 266,969.82, 400,468.05 and 79,963.50 is: 119,949.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,969.82 : 400,468.05 = 79,963.50 : x
  2. Step 2: Convert to fraction form
    266,969.82/400,468.05 = 79,963.50/x
  3. Step 3: Cross multiply
    266,969.82x = 400,468.05 × 79,963.50
  4. Step 4: Simplify right side
    266,969.82x = 32,022,826,916.18
  5. Step 5: Solve for x
    x = 32,022,826,916.18/266,969.82
  6. Step 6: Final answer
    x = 119,949.24

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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.