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Finding the Fourth Proportional to 331,709.02, 457,648.34 and 270,349.71

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Solution

The fourth proportional to 331,709.02, 457,648.34 and 270,349.71 is: 372,992.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,709.02 : 457,648.34 = 270,349.71 : x
  2. Step 2: Convert to fraction form
    331,709.02/457,648.34 = 270,349.71/x
  3. Step 3: Cross multiply
    331,709.02x = 457,648.34 × 270,349.71
  4. Step 4: Simplify right side
    331,709.02x = 123,725,096,000.98
  5. Step 5: Solve for x
    x = 123,725,096,000.98/331,709.02
  6. Step 6: Final answer
    x = 372,992.86

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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.