Home / 238,517.10-357,809.67-80,790.66

Finding the Fourth Proportional to 238,517.10, 357,809.67 and 80,790.66

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Solution

The fourth proportional to 238,517.10, 357,809.67 and 80,790.66 is: 121,197.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,517.10 : 357,809.67 = 80,790.66 : x
  2. Step 2: Convert to fraction form
    238,517.10/357,809.67 = 80,790.66/x
  3. Step 3: Cross multiply
    238,517.10x = 357,809.67 × 80,790.66
  4. Step 4: Simplify right side
    238,517.10x = 28,907,679,393.68
  5. Step 5: Solve for x
    x = 28,907,679,393.68/238,517.10
  6. Step 6: Final answer
    x = 121,197.51

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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.