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Finding the Fourth Proportional to 266,183.76, 399,078.80 and 160,979.34

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Solution

The fourth proportional to 266,183.76, 399,078.80 and 160,979.34 is: 241,349.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,183.76 : 399,078.80 = 160,979.34 : x
  2. Step 2: Convert to fraction form
    266,183.76/399,078.80 = 160,979.34/x
  3. Step 3: Cross multiply
    266,183.76x = 399,078.80 × 160,979.34
  4. Step 4: Simplify right side
    266,183.76x = 64,243,441,831.99
  5. Step 5: Solve for x
    x = 64,243,441,831.99/266,183.76
  6. Step 6: Final answer
    x = 241,349.97

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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.