Home / 397,171.20-548,099.28-215,883.12

Finding the Fourth Proportional to 397,171.20, 548,099.28 and 215,883.12

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Solution

The fourth proportional to 397,171.20, 548,099.28 and 215,883.12 is: 297,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,171.20 : 548,099.28 = 215,883.12 : x
  2. Step 2: Convert to fraction form
    397,171.20/548,099.28 = 215,883.12/x
  3. Step 3: Cross multiply
    397,171.20x = 548,099.28 × 215,883.12
  4. Step 4: Simplify right side
    397,171.20x = 118,325,382,636.15
  5. Step 5: Solve for x
    x = 118,325,382,636.15/397,171.20
  6. Step 6: Final answer
    x = 297,920.35

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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.