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Finding the Fourth Proportional to 512,031.18, 768,135.96 and 175,105.56

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Solution

The fourth proportional to 512,031.18, 768,135.96 and 175,105.56 is: 262,688.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,031.18 : 768,135.96 = 175,105.56 : x
  2. Step 2: Convert to fraction form
    512,031.18/768,135.96 = 175,105.56/x
  3. Step 3: Cross multiply
    512,031.18x = 768,135.96 × 175,105.56
  4. Step 4: Simplify right side
    512,031.18x = 134,504,877,431.94
  5. Step 5: Solve for x
    x = 134,504,877,431.94/512,031.18
  6. Step 6: Final answer
    x = 262,688.84

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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.