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Finding the Fourth Proportional to 266,639.70, 367,968.59 and 159,189.69

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Solution

The fourth proportional to 266,639.70, 367,968.59 and 159,189.69 is: 219,685.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,639.70 : 367,968.59 = 159,189.69 : x
  2. Step 2: Convert to fraction form
    266,639.70/367,968.59 = 159,189.69/x
  3. Step 3: Cross multiply
    266,639.70x = 367,968.59 × 159,189.69
  4. Step 4: Simplify right side
    266,639.70x = 58,576,805,771.84
  5. Step 5: Solve for x
    x = 58,576,805,771.84/266,639.70
  6. Step 6: Final answer
    x = 219,685.24

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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.