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Finding the Fourth Proportional to 266,638.70, 367,967.21 and 159,188.69

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Solution

The fourth proportional to 266,638.70, 367,967.21 and 159,188.69 is: 219,683.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,638.70 : 367,967.21 = 159,188.69 : x
  2. Step 2: Convert to fraction form
    266,638.70/367,967.21 = 159,188.69/x
  3. Step 3: Cross multiply
    266,638.70x = 367,967.21 × 159,188.69
  4. Step 4: Simplify right side
    266,638.70x = 58,576,218,246.83
  5. Step 5: Solve for x
    x = 58,576,218,246.83/266,638.70
  6. Step 6: Final answer
    x = 219,683.86

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1.5x scale

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.