Home / 251,976.80-377,965.20-207,653.60

Finding the Fourth Proportional to 251,976.80, 377,965.20 and 207,653.60

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Solution

The fourth proportional to 251,976.80, 377,965.20 and 207,653.60 is: 311,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,976.80 : 377,965.20 = 207,653.60 : x
  2. Step 2: Convert to fraction form
    251,976.80/377,965.20 = 207,653.60/x
  3. Step 3: Cross multiply
    251,976.80x = 377,965.20 × 207,653.60
  4. Step 4: Simplify right side
    251,976.80x = 78,485,834,454.72
  5. Step 5: Solve for x
    x = 78,485,834,454.72/251,976.80
  6. Step 6: Final answer
    x = 311,480.40

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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.