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Finding the Fourth Proportional to 347,236.20, 520,076.70 and 207,268.20

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Solution

The fourth proportional to 347,236.20, 520,076.70 and 207,268.20 is: 310,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,236.20 : 520,076.70 = 207,268.20 : x
  2. Step 2: Convert to fraction form
    347,236.20/520,076.70 = 207,268.20/x
  3. Step 3: Cross multiply
    347,236.20x = 520,076.70 × 207,268.20
  4. Step 4: Simplify right side
    347,236.20x = 107,795,361,470.94
  5. Step 5: Solve for x
    x = 107,795,361,470.94/347,236.20
  6. Step 6: Final answer
    x = 310,438.14

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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.