Home / 275,065.21-379,589.74-154,206.52

Finding the Fourth Proportional to 275,065.21, 379,589.74 and 154,206.52

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Solution

The fourth proportional to 275,065.21, 379,589.74 and 154,206.52 is: 212,804.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,065.21 : 379,589.74 = 154,206.52 : x
  2. Step 2: Convert to fraction form
    275,065.21/379,589.74 = 154,206.52/x
  3. Step 3: Cross multiply
    275,065.21x = 379,589.74 × 154,206.52
  4. Step 4: Simplify right side
    275,065.21x = 58,535,213,714.09
  5. Step 5: Solve for x
    x = 58,535,213,714.09/275,065.21
  6. Step 6: Final answer
    x = 212,804.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.