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Finding the Fourth Proportional to 266,006.60, 398,664.30 and 192,048.20

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Solution

The fourth proportional to 266,006.60, 398,664.30 and 192,048.20 is: 287,822.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,006.60 : 398,664.30 = 192,048.20 : x
  2. Step 2: Convert to fraction form
    266,006.60/398,664.30 = 192,048.20/x
  3. Step 3: Cross multiply
    266,006.60x = 398,664.30 × 192,048.20
  4. Step 4: Simplify right side
    266,006.60x = 76,562,761,219.26
  5. Step 5: Solve for x
    x = 76,562,761,219.26/266,006.60
  6. Step 6: Final answer
    x = 287,822.79

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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.