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Finding the Fourth Proportional to 384,597.55, 576,896.73 and 100,287.85

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Solution

The fourth proportional to 384,597.55, 576,896.73 and 100,287.85 is: 150,431.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,597.55 : 576,896.73 = 100,287.85 : x
  2. Step 2: Convert to fraction form
    384,597.55/576,896.73 = 100,287.85/x
  3. Step 3: Cross multiply
    384,597.55x = 576,896.73 × 100,287.85
  4. Step 4: Simplify right side
    384,597.55x = 57,855,732,723.73
  5. Step 5: Solve for x
    x = 57,855,732,723.73/384,597.55
  6. Step 6: Final answer
    x = 150,431.88

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1.5x scale

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.