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Finding the Fourth Proportional to 348,179.60, 480,311 and 227,391.59

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Solution

The fourth proportional to 348,179.60, 480,311 and 227,391.59 is: 313,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,179.60 : 480,311 = 227,391.59 : x
  2. Step 2: Convert to fraction form
    348,179.60/480,311 = 227,391.59/x
  3. Step 3: Cross multiply
    348,179.60x = 480,311 × 227,391.59
  4. Step 4: Simplify right side
    348,179.60x = 109,218,681,984.49
  5. Step 5: Solve for x
    x = 109,218,681,984.49/348,179.60
  6. Step 6: Final answer
    x = 313,684.90

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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.