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Finding the Fourth Proportional to 215,405.92, 297,248.70 and 119,910.16

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Solution

The fourth proportional to 215,405.92, 297,248.70 and 119,910.16 is: 165,469.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,405.92 : 297,248.70 = 119,910.16 : x
  2. Step 2: Convert to fraction form
    215,405.92/297,248.70 = 119,910.16/x
  3. Step 3: Cross multiply
    215,405.92x = 297,248.70 × 119,910.16
  4. Step 4: Simplify right side
    215,405.92x = 35,643,139,176.79
  5. Step 5: Solve for x
    x = 35,643,139,176.79/215,405.92
  6. Step 6: Final answer
    x = 165,469.64

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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.