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Finding the Fourth Proportional to 225,626.90, 311,358.08 and 123,650.51

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Solution

The fourth proportional to 225,626.90, 311,358.08 and 123,650.51 is: 170,633.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,626.90 : 311,358.08 = 123,650.51 : x
  2. Step 2: Convert to fraction form
    225,626.90/311,358.08 = 123,650.51/x
  3. Step 3: Cross multiply
    225,626.90x = 311,358.08 × 123,650.51
  4. Step 4: Simplify right side
    225,626.90x = 38,499,584,317.12
  5. Step 5: Solve for x
    x = 38,499,584,317.12/225,626.90
  6. Step 6: Final answer
    x = 170,633.84

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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.