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Finding the Fourth Proportional to 388,300.75, 582,213.26 and 151,366.63

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Solution

The fourth proportional to 388,300.75, 582,213.26 and 151,366.63 is: 226,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,300.75 : 582,213.26 = 151,366.63 : x
  2. Step 2: Convert to fraction form
    388,300.75/582,213.26 = 151,366.63/x
  3. Step 3: Cross multiply
    388,300.75x = 582,213.26 × 151,366.63
  4. Step 4: Simplify right side
    388,300.75x = 88,127,656,196.45
  5. Step 5: Solve for x
    x = 88,127,656,196.45/388,300.75
  6. Step 6: Final answer
    x = 226,957.22

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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.