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Finding the Fourth Proportional to 207,458.04, 311,108.76 and 67,179

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Solution

The fourth proportional to 207,458.04, 311,108.76 and 67,179 is: 100,743.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,458.04 : 311,108.76 = 67,179 : x
  2. Step 2: Convert to fraction form
    207,458.04/311,108.76 = 67,179/x
  3. Step 3: Cross multiply
    207,458.04x = 311,108.76 × 67,179
  4. Step 4: Simplify right side
    207,458.04x = 20,899,975,388.04
  5. Step 5: Solve for x
    x = 20,899,975,388.04/207,458.04
  6. Step 6: Final answer
    x = 100,743.14

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1.5x scale

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.