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Finding the Fourth Proportional to 388,375.84, 582,790.20 and 163,722.52

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Solution

The fourth proportional to 388,375.84, 582,790.20 and 163,722.52 is: 245,679.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,375.84 : 582,790.20 = 163,722.52 : x
  2. Step 2: Convert to fraction form
    388,375.84/582,790.20 = 163,722.52/x
  3. Step 3: Cross multiply
    388,375.84x = 582,790.20 × 163,722.52
  4. Step 4: Simplify right side
    388,375.84x = 95,415,880,175.30
  5. Step 5: Solve for x
    x = 95,415,880,175.30/388,375.84
  6. Step 6: Final answer
    x = 245,679.24

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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.