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Finding the Fourth Proportional to 380,877.57, 571,350.99 and 100,394.82

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Solution

The fourth proportional to 380,877.57, 571,350.99 and 100,394.82 is: 150,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,877.57 : 571,350.99 = 100,394.82 : x
  2. Step 2: Convert to fraction form
    380,877.57/571,350.99 = 100,394.82/x
  3. Step 3: Cross multiply
    380,877.57x = 571,350.99 × 100,394.82
  4. Step 4: Simplify right side
    380,877.57x = 57,360,679,797.87
  5. Step 5: Solve for x
    x = 57,360,679,797.87/380,877.57
  6. Step 6: Final answer
    x = 150,601.36

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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.