Home / 347,314.20-520,841.70-136,908.60

Finding the Fourth Proportional to 347,314.20, 520,841.70 and 136,908.60

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Solution

The fourth proportional to 347,314.20, 520,841.70 and 136,908.60 is: 205,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,314.20 : 520,841.70 = 136,908.60 : x
  2. Step 2: Convert to fraction form
    347,314.20/520,841.70 = 136,908.60/x
  3. Step 3: Cross multiply
    347,314.20x = 520,841.70 × 136,908.60
  4. Step 4: Simplify right side
    347,314.20x = 71,307,707,968.62
  5. Step 5: Solve for x
    x = 71,307,707,968.62/347,314.20
  6. Step 6: Final answer
    x = 205,311.81

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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.