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Finding the Fourth Proportional to 388,339.34, 582,575.43 and 177,995.30

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Solution

The fourth proportional to 388,339.34, 582,575.43 and 177,995.30 is: 267,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,339.34 : 582,575.43 = 177,995.30 : x
  2. Step 2: Convert to fraction form
    388,339.34/582,575.43 = 177,995.30/x
  3. Step 3: Cross multiply
    388,339.34x = 582,575.43 × 177,995.30
  4. Step 4: Simplify right side
    388,339.34x = 103,695,688,435.48
  5. Step 5: Solve for x
    x = 103,695,688,435.48/388,339.34
  6. Step 6: Final answer
    x = 267,023.39

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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.