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Finding the Fourth Proportional to 208,197.96, 312,105.56 and 75,045.62

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Solution

The fourth proportional to 208,197.96, 312,105.56 and 75,045.62 is: 112,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,197.96 : 312,105.56 = 75,045.62 : x
  2. Step 2: Convert to fraction form
    208,197.96/312,105.56 = 75,045.62/x
  3. Step 3: Cross multiply
    208,197.96x = 312,105.56 × 75,045.62
  4. Step 4: Simplify right side
    208,197.96x = 23,422,155,255.65
  5. Step 5: Solve for x
    x = 23,422,155,255.65/208,197.96
  6. Step 6: Final answer
    x = 112,499.45

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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.