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Finding the Fourth Proportional to 347,078.75, 520,667.49 and 107,213.03

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Solution

The fourth proportional to 347,078.75, 520,667.49 and 107,213.03 is: 160,834.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,078.75 : 520,667.49 = 107,213.03 : x
  2. Step 2: Convert to fraction form
    347,078.75/520,667.49 = 107,213.03/x
  3. Step 3: Cross multiply
    347,078.75x = 520,667.49 × 107,213.03
  4. Step 4: Simplify right side
    347,078.75x = 55,822,336,622.06
  5. Step 5: Solve for x
    x = 55,822,336,622.06/347,078.75
  6. Step 6: Final answer
    x = 160,834.79

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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.