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Finding the Fourth Proportional to 388,358.72, 582,343.24 and 226,305.26

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Solution

The fourth proportional to 388,358.72, 582,343.24 and 226,305.26 is: 339,344.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,358.72 : 582,343.24 = 226,305.26 : x
  2. Step 2: Convert to fraction form
    388,358.72/582,343.24 = 226,305.26/x
  3. Step 3: Cross multiply
    388,358.72x = 582,343.24 × 226,305.26
  4. Step 4: Simplify right side
    388,358.72x = 131,787,338,337.44
  5. Step 5: Solve for x
    x = 131,787,338,337.44/388,358.72
  6. Step 6: Final answer
    x = 339,344.35

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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.