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Finding the Fourth Proportional to 266,192.76, 399,308.64 and 76,645.44

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Solution

The fourth proportional to 266,192.76, 399,308.64 and 76,645.44 is: 114,973.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,192.76 : 399,308.64 = 76,645.44 : x
  2. Step 2: Convert to fraction form
    266,192.76/399,308.64 = 76,645.44/x
  3. Step 3: Cross multiply
    266,192.76x = 399,308.64 × 76,645.44
  4. Step 4: Simplify right side
    266,192.76x = 30,605,186,408.60
  5. Step 5: Solve for x
    x = 30,605,186,408.60/266,192.76
  6. Step 6: Final answer
    x = 114,973.77

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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.