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Finding the Fourth Proportional to 266,234.07, 399,252.63 and 76,630.41

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Solution

The fourth proportional to 266,234.07, 399,252.63 and 76,630.41 is: 114,917.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,234.07 : 399,252.63 = 76,630.41 : x
  2. Step 2: Convert to fraction form
    266,234.07/399,252.63 = 76,630.41/x
  3. Step 3: Cross multiply
    266,234.07x = 399,252.63 × 76,630.41
  4. Step 4: Simplify right side
    266,234.07x = 30,594,892,730.48
  5. Step 5: Solve for x
    x = 30,594,892,730.48/266,234.07
  6. Step 6: Final answer
    x = 114,917.27

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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.