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Finding the Fourth Proportional to 266,333.64, 399,496.38 and 79,345.14

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Solution

The fourth proportional to 266,333.64, 399,496.38 and 79,345.14 is: 119,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,333.64 : 399,496.38 = 79,345.14 : x
  2. Step 2: Convert to fraction form
    266,333.64/399,496.38 = 79,345.14/x
  3. Step 3: Cross multiply
    266,333.64x = 399,496.38 × 79,345.14
  4. Step 4: Simplify right side
    266,333.64x = 31,698,096,200.59
  5. Step 5: Solve for x
    x = 31,698,096,200.59/266,333.64
  6. Step 6: Final answer
    x = 119,016.49

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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.