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Finding the Fourth Proportional to 348,380.64, 480,867.60 and 227,540.40

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Solution

The fourth proportional to 348,380.64, 480,867.60 and 227,540.40 is: 314,072.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,380.64 : 480,867.60 = 227,540.40 : x
  2. Step 2: Convert to fraction form
    348,380.64/480,867.60 = 227,540.40/x
  3. Step 3: Cross multiply
    348,380.64x = 480,867.60 × 227,540.40
  4. Step 4: Simplify right side
    348,380.64x = 109,416,806,051.04
  5. Step 5: Solve for x
    x = 109,416,806,051.04/348,380.64
  6. Step 6: Final answer
    x = 314,072.58

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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.