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Finding the Fourth Proportional to 348,463.20, 522,694.80 and 214,910.40

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Solution

The fourth proportional to 348,463.20, 522,694.80 and 214,910.40 is: 322,365.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,463.20 : 522,694.80 = 214,910.40 : x
  2. Step 2: Convert to fraction form
    348,463.20/522,694.80 = 214,910.40/x
  3. Step 3: Cross multiply
    348,463.20x = 522,694.80 × 214,910.40
  4. Step 4: Simplify right side
    348,463.20x = 112,332,548,545.92
  5. Step 5: Solve for x
    x = 112,332,548,545.92/348,463.20
  6. Step 6: Final answer
    x = 322,365.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.