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Finding the Fourth Proportional to 347,266.70, 520,080.85 and 214,556.30

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Solution

The fourth proportional to 347,266.70, 520,080.85 and 214,556.30 is: 321,328.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,266.70 : 520,080.85 = 214,556.30 : x
  2. Step 2: Convert to fraction form
    347,266.70/520,080.85 = 214,556.30/x
  3. Step 3: Cross multiply
    347,266.70x = 520,080.85 × 214,556.30
  4. Step 4: Simplify right side
    347,266.70x = 111,586,622,876.86
  5. Step 5: Solve for x
    x = 111,586,622,876.86/347,266.70
  6. Step 6: Final answer
    x = 321,328.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.