Home / 309,760.44-427,619.58-207,748.65

Finding the Fourth Proportional to 309,760.44, 427,619.58 and 207,748.65

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Solution

The fourth proportional to 309,760.44, 427,619.58 and 207,748.65 is: 286,793.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,760.44 : 427,619.58 = 207,748.65 : x
  2. Step 2: Convert to fraction form
    309,760.44/427,619.58 = 207,748.65/x
  3. Step 3: Cross multiply
    309,760.44x = 427,619.58 × 207,748.65
  4. Step 4: Simplify right side
    309,760.44x = 88,837,390,458.57
  5. Step 5: Solve for x
    x = 88,837,390,458.57/309,760.44
  6. Step 6: Final answer
    x = 286,793.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.