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Finding the Fourth Proportional to 215,079.78, 296,808.45 and 119,585.64

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Solution

The fourth proportional to 215,079.78, 296,808.45 and 119,585.64 is: 165,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,079.78 : 296,808.45 = 119,585.64 : x
  2. Step 2: Convert to fraction form
    215,079.78/296,808.45 = 119,585.64/x
  3. Step 3: Cross multiply
    215,079.78x = 296,808.45 × 119,585.64
  4. Step 4: Simplify right side
    215,079.78x = 35,494,028,450.66
  5. Step 5: Solve for x
    x = 35,494,028,450.66/215,079.78
  6. Step 6: Final answer
    x = 165,027.27

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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.