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Finding the Fourth Proportional to 266,536.37, 399,745.62 and 76,955.49

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Solution

The fourth proportional to 266,536.37, 399,745.62 and 76,955.49 is: 115,416.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,536.37 : 399,745.62 = 76,955.49 : x
  2. Step 2: Convert to fraction form
    266,536.37/399,745.62 = 76,955.49/x
  3. Step 3: Cross multiply
    266,536.37x = 399,745.62 × 76,955.49
  4. Step 4: Simplify right side
    266,536.37x = 30,762,620,062.45
  5. Step 5: Solve for x
    x = 30,762,620,062.45/266,536.37
  6. Step 6: Final answer
    x = 115,416.22

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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.