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Finding the Fourth Proportional to 189,249.31, 283,862.82 and 70,910.74

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Solution

The fourth proportional to 189,249.31, 283,862.82 and 70,910.74 is: 106,361.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,249.31 : 283,862.82 = 70,910.74 : x
  2. Step 2: Convert to fraction form
    189,249.31/283,862.82 = 70,910.74/x
  3. Step 3: Cross multiply
    189,249.31x = 283,862.82 × 70,910.74
  4. Step 4: Simplify right side
    189,249.31x = 20,128,921,205.37
  5. Step 5: Solve for x
    x = 20,128,921,205.37/189,249.31
  6. Step 6: Final answer
    x = 106,361.93

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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.