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Finding the Fourth Proportional to 300,586.52, 415,090.40 and 193,342.73

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Solution

The fourth proportional to 300,586.52, 415,090.40 and 193,342.73 is: 266,993.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,586.52 : 415,090.40 = 193,342.73 : x
  2. Step 2: Convert to fraction form
    300,586.52/415,090.40 = 193,342.73/x
  3. Step 3: Cross multiply
    300,586.52x = 415,090.40 × 193,342.73
  4. Step 4: Simplify right side
    300,586.52x = 80,254,711,132.79
  5. Step 5: Solve for x
    x = 80,254,711,132.79/300,586.52
  6. Step 6: Final answer
    x = 266,993.71

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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.