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Finding the Fourth Proportional to 247,987, 372,085.86 and 135,535.86

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Solution

The fourth proportional to 247,987, 372,085.86 and 135,535.86 is: 203,361.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,987 : 372,085.86 = 135,535.86 : x
  2. Step 2: Convert to fraction form
    247,987/372,085.86 = 135,535.86/x
  3. Step 3: Cross multiply
    247,987x = 372,085.86 × 135,535.86
  4. Step 4: Simplify right side
    247,987x = 50,430,977,028.94
  5. Step 5: Solve for x
    x = 50,430,977,028.94/247,987
  6. Step 6: Final answer
    x = 203,361.37

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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.