Home / 311,981.55-468,464.40-179,121.30

Finding the Fourth Proportional to 311,981.55, 468,464.40 and 179,121.30

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Solution

The fourth proportional to 311,981.55, 468,464.40 and 179,121.30 is: 268,964.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,981.55 : 468,464.40 = 179,121.30 : x
  2. Step 2: Convert to fraction form
    311,981.55/468,464.40 = 179,121.30/x
  3. Step 3: Cross multiply
    311,981.55x = 468,464.40 × 179,121.30
  4. Step 4: Simplify right side
    311,981.55x = 83,911,952,331.72
  5. Step 5: Solve for x
    x = 83,911,952,331.72/311,981.55
  6. Step 6: Final answer
    x = 268,964.47

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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.