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Finding the Fourth Proportional to 215,349, 297,181.30 and 119,853.40

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Solution

The fourth proportional to 215,349, 297,181.30 and 119,853.40 is: 165,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,349 : 297,181.30 = 119,853.40 : x
  2. Step 2: Convert to fraction form
    215,349/297,181.30 = 119,853.40/x
  3. Step 3: Cross multiply
    215,349x = 297,181.30 × 119,853.40
  4. Step 4: Simplify right side
    215,349x = 35,618,189,221.42
  5. Step 5: Solve for x
    x = 35,618,189,221.42/215,349
  6. Step 6: Final answer
    x = 165,397.51

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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.