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Finding the Fourth Proportional to 220,650.51, 330,660.01 and 125,684.64

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Solution

The fourth proportional to 220,650.51, 330,660.01 and 125,684.64 is: 188,347.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,650.51 : 330,660.01 = 125,684.64 : x
  2. Step 2: Convert to fraction form
    220,650.51/330,660.01 = 125,684.64/x
  3. Step 3: Cross multiply
    220,650.51x = 330,660.01 × 125,684.64
  4. Step 4: Simplify right side
    220,650.51x = 41,558,884,319.25
  5. Step 5: Solve for x
    x = 41,558,884,319.25/220,650.51
  6. Step 6: Final answer
    x = 188,347.10

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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.