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Finding the Fourth Proportional to 243,219.48, 335,639.56 and 134,321.44

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Solution

The fourth proportional to 243,219.48, 335,639.56 and 134,321.44 is: 185,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,219.48 : 335,639.56 = 134,321.44 : x
  2. Step 2: Convert to fraction form
    243,219.48/335,639.56 = 134,321.44/x
  3. Step 3: Cross multiply
    243,219.48x = 335,639.56 × 134,321.44
  4. Step 4: Simplify right side
    243,219.48x = 45,083,589,020.17
  5. Step 5: Solve for x
    x = 45,083,589,020.17/243,219.48
  6. Step 6: Final answer
    x = 185,361.75

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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.