Home / 367,629.40-551,508.90-131,109.40

Finding the Fourth Proportional to 367,629.40, 551,508.90 and 131,109.40

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Solution

The fourth proportional to 367,629.40, 551,508.90 and 131,109.40 is: 196,687.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,629.40 : 551,508.90 = 131,109.40 : x
  2. Step 2: Convert to fraction form
    367,629.40/551,508.90 = 131,109.40/x
  3. Step 3: Cross multiply
    367,629.40x = 551,508.90 × 131,109.40
  4. Step 4: Simplify right side
    367,629.40x = 72,308,000,973.66
  5. Step 5: Solve for x
    x = 72,308,000,973.66/367,629.40
  6. Step 6: Final answer
    x = 196,687.21

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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.