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Finding the Fourth Proportional to 247,992.30, 342,369.72 and 189,739.26

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Solution

The fourth proportional to 247,992.30, 342,369.72 and 189,739.26 is: 261,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,992.30 : 342,369.72 = 189,739.26 : x
  2. Step 2: Convert to fraction form
    247,992.30/342,369.72 = 189,739.26/x
  3. Step 3: Cross multiply
    247,992.30x = 342,369.72 × 189,739.26
  4. Step 4: Simplify right side
    247,992.30x = 64,960,977,319.21
  5. Step 5: Solve for x
    x = 64,960,977,319.21/247,992.30
  6. Step 6: Final answer
    x = 261,947.56

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1.5x scale

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.