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Finding the Fourth Proportional to 503,512.20, 756,143.10 and 267,316.20

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Solution

The fourth proportional to 503,512.20, 756,143.10 and 267,316.20 is: 401,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,512.20 : 756,143.10 = 267,316.20 : x
  2. Step 2: Convert to fraction form
    503,512.20/756,143.10 = 267,316.20/x
  3. Step 3: Cross multiply
    503,512.20x = 756,143.10 × 267,316.20
  4. Step 4: Simplify right side
    503,512.20x = 202,129,300,148.22
  5. Step 5: Solve for x
    x = 202,129,300,148.22/503,512.20
  6. Step 6: Final answer
    x = 401,438.73

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Double scale
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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.