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Finding the Fourth Proportional to 266,868.66, 368,242.38 and 159,415.88

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Solution

The fourth proportional to 266,868.66, 368,242.38 and 159,415.88 is: 219,972.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,868.66 : 368,242.38 = 159,415.88 : x
  2. Step 2: Convert to fraction form
    266,868.66/368,242.38 = 159,415.88/x
  3. Step 3: Cross multiply
    266,868.66x = 368,242.38 × 159,415.88
  4. Step 4: Simplify right side
    266,868.66x = 58,703,682,842.79
  5. Step 5: Solve for x
    x = 58,703,682,842.79/266,868.66
  6. Step 6: Final answer
    x = 219,972.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.