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Finding the Fourth Proportional to 376,556.64, 564,715.32 and 123,778.80

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Solution

The fourth proportional to 376,556.64, 564,715.32 and 123,778.80 is: 185,628.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,556.64 : 564,715.32 = 123,778.80 : x
  2. Step 2: Convert to fraction form
    376,556.64/564,715.32 = 123,778.80/x
  3. Step 3: Cross multiply
    376,556.64x = 564,715.32 × 123,778.80
  4. Step 4: Simplify right side
    376,556.64x = 69,899,784,651.22
  5. Step 5: Solve for x
    x = 69,899,784,651.22/376,556.64
  6. Step 6: Final answer
    x = 185,628.87

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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.