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Finding the Fourth Proportional to 266,385.52, 399,578.54 and 74,252.27

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Solution

The fourth proportional to 266,385.52, 399,578.54 and 74,252.27 is: 111,378.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,385.52 : 399,578.54 = 74,252.27 : x
  2. Step 2: Convert to fraction form
    266,385.52/399,578.54 = 74,252.27/x
  3. Step 3: Cross multiply
    266,385.52x = 399,578.54 × 74,252.27
  4. Step 4: Simplify right side
    266,385.52x = 29,669,611,269.13
  5. Step 5: Solve for x
    x = 29,669,611,269.13/266,385.52
  6. Step 6: Final answer
    x = 111,378.47

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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.