Home / 388,241.40-582,420.86-121,976.85

Finding the Fourth Proportional to 388,241.40, 582,420.86 and 121,976.85

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Solution

The fourth proportional to 388,241.40, 582,420.86 and 121,976.85 is: 182,983.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,241.40 : 582,420.86 = 121,976.85 : x
  2. Step 2: Convert to fraction form
    388,241.40/582,420.86 = 121,976.85/x
  3. Step 3: Cross multiply
    388,241.40x = 582,420.86 × 121,976.85
  4. Step 4: Simplify right side
    388,241.40x = 71,041,861,267.21
  5. Step 5: Solve for x
    x = 71,041,861,267.21/388,241.40
  6. Step 6: Final answer
    x = 182,983.73

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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.