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Finding the Fourth Proportional to 199,551.72, 275,416.50 and 118,984.20

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Solution

The fourth proportional to 199,551.72, 275,416.50 and 118,984.20 is: 164,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,551.72 : 275,416.50 = 118,984.20 : x
  2. Step 2: Convert to fraction form
    199,551.72/275,416.50 = 118,984.20/x
  3. Step 3: Cross multiply
    199,551.72x = 275,416.50 × 118,984.20
  4. Step 4: Simplify right side
    199,551.72x = 32,770,211,919.30
  5. Step 5: Solve for x
    x = 32,770,211,919.30/199,551.72
  6. Step 6: Final answer
    x = 164,219.14

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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.