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Finding the Fourth Proportional to 189,295, 283,859.34 and 70,883.28

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Solution

The fourth proportional to 189,295, 283,859.34 and 70,883.28 is: 106,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,295 : 283,859.34 = 70,883.28 : x
  2. Step 2: Convert to fraction form
    189,295/283,859.34 = 70,883.28/x
  3. Step 3: Cross multiply
    189,295x = 283,859.34 × 70,883.28
  4. Step 4: Simplify right side
    189,295x = 20,120,881,077.84
  5. Step 5: Solve for x
    x = 20,120,881,077.84/189,295
  6. Step 6: Final answer
    x = 106,293.78

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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.