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Finding the Fourth Proportional to 299,454.39, 412,754.67 and 212,268.69

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Solution

The fourth proportional to 299,454.39, 412,754.67 and 212,268.69 is: 292,581.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,454.39 : 412,754.67 = 212,268.69 : x
  2. Step 2: Convert to fraction form
    299,454.39/412,754.67 = 212,268.69/x
  3. Step 3: Cross multiply
    299,454.39x = 412,754.67 × 212,268.69
  4. Step 4: Simplify right side
    299,454.39x = 87,614,893,092.28
  5. Step 5: Solve for x
    x = 87,614,893,092.28/299,454.39
  6. Step 6: Final answer
    x = 292,581.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.