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Finding the Fourth Proportional to 215,146.89, 296,910.90 and 119,660.49

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Solution

The fourth proportional to 215,146.89, 296,910.90 and 119,660.49 is: 165,136.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,146.89 : 296,910.90 = 119,660.49 : x
  2. Step 2: Convert to fraction form
    215,146.89/296,910.90 = 119,660.49/x
  3. Step 3: Cross multiply
    215,146.89x = 296,910.90 × 119,660.49
  4. Step 4: Simplify right side
    215,146.89x = 35,528,503,780.34
  5. Step 5: Solve for x
    x = 35,528,503,780.34/215,146.89
  6. Step 6: Final answer
    x = 165,136.03

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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.