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Finding the Fourth Proportional to 512,633.40, 768,950.10 and 133,553.40

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Solution

The fourth proportional to 512,633.40, 768,950.10 and 133,553.40 is: 200,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,633.40 : 768,950.10 = 133,553.40 : x
  2. Step 2: Convert to fraction form
    512,633.40/768,950.10 = 133,553.40/x
  3. Step 3: Cross multiply
    512,633.40x = 768,950.10 × 133,553.40
  4. Step 4: Simplify right side
    512,633.40x = 102,695,900,285.34
  5. Step 5: Solve for x
    x = 102,695,900,285.34/512,633.40
  6. Step 6: Final answer
    x = 200,330.10

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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.