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Finding the Fourth Proportional to 347,853.60, 480,015.12 and 196,960.80

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Solution

The fourth proportional to 347,853.60, 480,015.12 and 196,960.80 is: 271,792.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,853.60 : 480,015.12 = 196,960.80 : x
  2. Step 2: Convert to fraction form
    347,853.60/480,015.12 = 196,960.80/x
  3. Step 3: Cross multiply
    347,853.60x = 480,015.12 × 196,960.80
  4. Step 4: Simplify right side
    347,853.60x = 94,544,162,047.30
  5. Step 5: Solve for x
    x = 94,544,162,047.30/347,853.60
  6. Step 6: Final answer
    x = 271,792.97

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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.