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Finding the Fourth Proportional to 347,612.49, 522,292.22 and 221,309.12

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Solution

The fourth proportional to 347,612.49, 522,292.22 and 221,309.12 is: 332,519.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,612.49 : 522,292.22 = 221,309.12 : x
  2. Step 2: Convert to fraction form
    347,612.49/522,292.22 = 221,309.12/x
  3. Step 3: Cross multiply
    347,612.49x = 522,292.22 × 221,309.12
  4. Step 4: Simplify right side
    347,612.49x = 115,588,031,591.05
  5. Step 5: Solve for x
    x = 115,588,031,591.05/347,612.49
  6. Step 6: Final answer
    x = 332,519.79

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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.