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Finding the Fourth Proportional to 266,208.64, 399,313.98 and 66,529.24

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Solution

The fourth proportional to 266,208.64, 399,313.98 and 66,529.24 is: 99,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,208.64 : 399,313.98 = 66,529.24 : x
  2. Step 2: Convert to fraction form
    266,208.64/399,313.98 = 66,529.24/x
  3. Step 3: Cross multiply
    266,208.64x = 399,313.98 × 66,529.24
  4. Step 4: Simplify right side
    266,208.64x = 26,566,055,610.78
  5. Step 5: Solve for x
    x = 26,566,055,610.78/266,208.64
  6. Step 6: Final answer
    x = 99,794.11

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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.