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Finding the Fourth Proportional to 347,203.64, 479,176.74 and 211,247.24

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Solution

The fourth proportional to 347,203.64, 479,176.74 and 211,247.24 is: 291,542.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,203.64 : 479,176.74 = 211,247.24 : x
  2. Step 2: Convert to fraction form
    347,203.64/479,176.74 = 211,247.24/x
  3. Step 3: Cross multiply
    347,203.64x = 479,176.74 × 211,247.24
  4. Step 4: Simplify right side
    347,203.64x = 101,224,763,797.20
  5. Step 5: Solve for x
    x = 101,224,763,797.20/347,203.64
  6. Step 6: Final answer
    x = 291,542.92

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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.