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Finding the Fourth Proportional to 388,272.52, 582,179.16 and 151,338.64

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Solution

The fourth proportional to 388,272.52, 582,179.16 and 151,338.64 is: 226,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,272.52 : 582,179.16 = 151,338.64 : x
  2. Step 2: Convert to fraction form
    388,272.52/582,179.16 = 151,338.64/x
  3. Step 3: Cross multiply
    388,272.52x = 582,179.16 × 151,338.64
  4. Step 4: Simplify right side
    388,272.52x = 88,106,202,310.74
  5. Step 5: Solve for x
    x = 88,106,202,310.74/388,272.52
  6. Step 6: Final answer
    x = 226,918.46

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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.