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Finding the Fourth Proportional to 215,119.76, 296,868.12 and 119,634.80

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Solution

The fourth proportional to 215,119.76, 296,868.12 and 119,634.80 is: 165,097.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,119.76 : 296,868.12 = 119,634.80 : x
  2. Step 2: Convert to fraction form
    215,119.76/296,868.12 = 119,634.80/x
  3. Step 3: Cross multiply
    215,119.76x = 296,868.12 × 119,634.80
  4. Step 4: Simplify right side
    215,119.76x = 35,515,758,162.58
  5. Step 5: Solve for x
    x = 35,515,758,162.58/215,119.76
  6. Step 6: Final answer
    x = 165,097.61

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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.