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Finding the Fourth Proportional to 225,322.28, 310,942.08 and 123,346.52

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Solution

The fourth proportional to 225,322.28, 310,942.08 and 123,346.52 is: 170,216.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,322.28 : 310,942.08 = 123,346.52 : x
  2. Step 2: Convert to fraction form
    225,322.28/310,942.08 = 123,346.52/x
  3. Step 3: Cross multiply
    225,322.28x = 310,942.08 × 123,346.52
  4. Step 4: Simplify right side
    225,322.28x = 38,353,623,489.56
  5. Step 5: Solve for x
    x = 38,353,623,489.56/225,322.28
  6. Step 6: Final answer
    x = 170,216.74

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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.