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Finding the Fourth Proportional to 201,310.90, 301,966.35 and 107,998.90

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Solution

The fourth proportional to 201,310.90, 301,966.35 and 107,998.90 is: 161,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,310.90 : 301,966.35 = 107,998.90 : x
  2. Step 2: Convert to fraction form
    201,310.90/301,966.35 = 107,998.90/x
  3. Step 3: Cross multiply
    201,310.90x = 301,966.35 × 107,998.90
  4. Step 4: Simplify right side
    201,310.90x = 32,612,033,637.02
  5. Step 5: Solve for x
    x = 32,612,033,637.02/201,310.90
  6. Step 6: Final answer
    x = 161,998.35

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Similar ratio
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1.5x scale

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.