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Finding the Fourth Proportional to 347,604.66, 479,734.74 and 211,718.34

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Solution

The fourth proportional to 347,604.66, 479,734.74 and 211,718.34 is: 292,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,604.66 : 479,734.74 = 211,718.34 : x
  2. Step 2: Convert to fraction form
    347,604.66/479,734.74 = 211,718.34/x
  3. Step 3: Cross multiply
    347,604.66x = 479,734.74 × 211,718.34
  4. Step 4: Simplify right side
    347,604.66x = 101,568,642,793.13
  5. Step 5: Solve for x
    x = 101,568,642,793.13/347,604.66
  6. Step 6: Final answer
    x = 292,195.86

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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.