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Finding the Fourth Proportional to 512,621.37, 768,932.33 and 133,541.10

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Solution

The fourth proportional to 512,621.37, 768,932.33 and 133,541.10 is: 200,311.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,621.37 : 768,932.33 = 133,541.10 : x
  2. Step 2: Convert to fraction form
    512,621.37/768,932.33 = 133,541.10/x
  3. Step 3: Cross multiply
    512,621.37x = 768,932.33 × 133,541.10
  4. Step 4: Simplify right side
    512,621.37x = 102,684,068,506.06
  5. Step 5: Solve for x
    x = 102,684,068,506.06/512,621.37
  6. Step 6: Final answer
    x = 200,311.72

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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.