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Finding the Fourth Proportional to 298,601.12, 412,123.20 and 171,318.80

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Solution

The fourth proportional to 298,601.12, 412,123.20 and 171,318.80 is: 236,450.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,601.12 : 412,123.20 = 171,318.80 : x
  2. Step 2: Convert to fraction form
    298,601.12/412,123.20 = 171,318.80/x
  3. Step 3: Cross multiply
    298,601.12x = 412,123.20 × 171,318.80
  4. Step 4: Simplify right side
    298,601.12x = 70,604,452,076.16
  5. Step 5: Solve for x
    x = 70,604,452,076.16/298,601.12
  6. Step 6: Final answer
    x = 236,450.73

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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.