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Finding the Fourth Proportional to 388,334.88, 582,711.58 and 163,850.90

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Solution

The fourth proportional to 388,334.88, 582,711.58 and 163,850.90 is: 245,864.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,334.88 : 582,711.58 = 163,850.90 : x
  2. Step 2: Convert to fraction form
    388,334.88/582,711.58 = 163,850.90/x
  3. Step 3: Cross multiply
    388,334.88x = 582,711.58 × 163,850.90
  4. Step 4: Simplify right side
    388,334.88x = 95,477,816,823.42
  5. Step 5: Solve for x
    x = 95,477,816,823.42/388,334.88
  6. Step 6: Final answer
    x = 245,864.64

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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.