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Finding the Fourth Proportional to 508,144.72, 762,217.14 and 134,170.96

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Solution

The fourth proportional to 508,144.72, 762,217.14 and 134,170.96 is: 201,256.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,144.72 : 762,217.14 = 134,170.96 : x
  2. Step 2: Convert to fraction form
    508,144.72/762,217.14 = 134,170.96/x
  3. Step 3: Cross multiply
    508,144.72x = 762,217.14 × 134,170.96
  4. Step 4: Simplify right side
    508,144.72x = 102,267,405,402.25
  5. Step 5: Solve for x
    x = 102,267,405,402.25/508,144.72
  6. Step 6: Final answer
    x = 201,256.46

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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.