Home / 667,431.50-1,001,136.64-161,996.65

Finding the Fourth Proportional to 667,431.50, 1,001,136.64 and 161,996.65

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Solution

The fourth proportional to 667,431.50, 1,001,136.64 and 161,996.65 is: 242,992.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,431.50 : 1,001,136.64 = 161,996.65 : x
  2. Step 2: Convert to fraction form
    667,431.50/1,001,136.64 = 161,996.65/x
  3. Step 3: Cross multiply
    667,431.50x = 1,001,136.64 × 161,996.65
  4. Step 4: Simplify right side
    667,431.50x = 162,180,781,872.26
  5. Step 5: Solve for x
    x = 162,180,781,872.26/667,431.50
  6. Step 6: Final answer
    x = 242,992.40

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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.