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Finding the Fourth Proportional to 347,227.53, 479,248.94 and 211,305.27

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Solution

The fourth proportional to 347,227.53, 479,248.94 and 211,305.27 is: 291,646.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,227.53 : 479,248.94 = 211,305.27 : x
  2. Step 2: Convert to fraction form
    347,227.53/479,248.94 = 211,305.27/x
  3. Step 3: Cross multiply
    347,227.53x = 479,248.94 × 211,305.27
  4. Step 4: Simplify right side
    347,227.53x = 101,267,826,399.78
  5. Step 5: Solve for x
    x = 101,267,826,399.78/347,227.53
  6. Step 6: Final answer
    x = 291,646.88

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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.