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Finding the Fourth Proportional to 215,375.92, 297,212.16 and 119,880.16

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Solution

The fourth proportional to 215,375.92, 297,212.16 and 119,880.16 is: 165,430.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,375.92 : 297,212.16 = 119,880.16 : x
  2. Step 2: Convert to fraction form
    215,375.92/297,212.16 = 119,880.16/x
  3. Step 3: Cross multiply
    215,375.92x = 297,212.16 × 119,880.16
  4. Step 4: Simplify right side
    215,375.92x = 35,629,841,294.75
  5. Step 5: Solve for x
    x = 35,629,841,294.75/215,375.92
  6. Step 6: Final answer
    x = 165,430.94

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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.