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Finding the Fourth Proportional to 220,619.01, 330,259.35 and 199,567.92

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Solution

The fourth proportional to 220,619.01, 330,259.35 and 199,567.92 is: 298,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,619.01 : 330,259.35 = 199,567.92 : x
  2. Step 2: Convert to fraction form
    220,619.01/330,259.35 = 199,567.92/x
  3. Step 3: Cross multiply
    220,619.01x = 330,259.35 × 199,567.92
  4. Step 4: Simplify right side
    220,619.01x = 65,909,171,540.05
  5. Step 5: Solve for x
    x = 65,909,171,540.05/220,619.01
  6. Step 6: Final answer
    x = 298,746.57

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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.