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Finding the Fourth Proportional to 366,979.60, 550,469.40 and 219,523.60

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Solution

The fourth proportional to 366,979.60, 550,469.40 and 219,523.60 is: 329,285.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,979.60 : 550,469.40 = 219,523.60 : x
  2. Step 2: Convert to fraction form
    366,979.60/550,469.40 = 219,523.60/x
  3. Step 3: Cross multiply
    366,979.60x = 550,469.40 × 219,523.60
  4. Step 4: Simplify right side
    366,979.60x = 120,841,024,377.84
  5. Step 5: Solve for x
    x = 120,841,024,377.84/366,979.60
  6. Step 6: Final answer
    x = 329,285.40

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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.