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Finding the Fourth Proportional to 388,061.60, 582,092.40 and 263,645.60

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Solution

The fourth proportional to 388,061.60, 582,092.40 and 263,645.60 is: 395,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,061.60 : 582,092.40 = 263,645.60 : x
  2. Step 2: Convert to fraction form
    388,061.60/582,092.40 = 263,645.60/x
  3. Step 3: Cross multiply
    388,061.60x = 582,092.40 × 263,645.60
  4. Step 4: Simplify right side
    388,061.60x = 153,466,100,053.44
  5. Step 5: Solve for x
    x = 153,466,100,053.44/388,061.60
  6. Step 6: Final answer
    x = 395,468.40

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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.