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Finding the Fourth Proportional to 347,106.60, 520,076.70 and 169,230.60

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Solution

The fourth proportional to 347,106.60, 520,076.70 and 169,230.60 is: 253,561.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,106.60 : 520,076.70 = 169,230.60 : x
  2. Step 2: Convert to fraction form
    347,106.60/520,076.70 = 169,230.60/x
  3. Step 3: Cross multiply
    347,106.60x = 520,076.70 × 169,230.60
  4. Step 4: Simplify right side
    347,106.60x = 88,012,891,987.02
  5. Step 5: Solve for x
    x = 88,012,891,987.02/347,106.60
  6. Step 6: Final answer
    x = 253,561.56

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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.