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Finding the Fourth Proportional to 388,753.56, 582,889.77 and 151,817.63

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Solution

The fourth proportional to 388,753.56, 582,889.77 and 151,817.63 is: 227,632.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,753.56 : 582,889.77 = 151,817.63 : x
  2. Step 2: Convert to fraction form
    388,753.56/582,889.77 = 151,817.63/x
  3. Step 3: Cross multiply
    388,753.56x = 582,889.77 × 151,817.63
  4. Step 4: Simplify right side
    388,753.56x = 88,492,940,518.20
  5. Step 5: Solve for x
    x = 88,492,940,518.20/388,753.56
  6. Step 6: Final answer
    x = 227,632.49

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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.