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Finding the Fourth Proportional to 247,998.24, 372,024.72 and 79,478.64

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Solution

The fourth proportional to 247,998.24, 372,024.72 and 79,478.64 is: 119,226.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,998.24 : 372,024.72 = 79,478.64 : x
  2. Step 2: Convert to fraction form
    247,998.24/372,024.72 = 79,478.64/x
  3. Step 3: Cross multiply
    247,998.24x = 372,024.72 × 79,478.64
  4. Step 4: Simplify right side
    247,998.24x = 29,568,018,791.98
  5. Step 5: Solve for x
    x = 29,568,018,791.98/247,998.24
  6. Step 6: Final answer
    x = 119,226.73

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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.