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Finding the Fourth Proportional to 247,716.32, 341,990.16 and 163,079.44

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Solution

The fourth proportional to 247,716.32, 341,990.16 and 163,079.44 is: 225,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,716.32 : 341,990.16 = 163,079.44 : x
  2. Step 2: Convert to fraction form
    247,716.32/341,990.16 = 163,079.44/x
  3. Step 3: Cross multiply
    247,716.32x = 341,990.16 × 163,079.44
  4. Step 4: Simplify right side
    247,716.32x = 55,771,563,778.31
  5. Step 5: Solve for x
    x = 55,771,563,778.31/247,716.32
  6. Step 6: Final answer
    x = 225,142.87

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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.