Home / 274,631.85-378,958.77-153,763.65

Finding the Fourth Proportional to 274,631.85, 378,958.77 and 153,763.65

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Solution

The fourth proportional to 274,631.85, 378,958.77 and 153,763.65 is: 212,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,631.85 : 378,958.77 = 153,763.65 : x
  2. Step 2: Convert to fraction form
    274,631.85/378,958.77 = 153,763.65/x
  3. Step 3: Cross multiply
    274,631.85x = 378,958.77 × 153,763.65
  4. Step 4: Simplify right side
    274,631.85x = 58,270,083,674.71
  5. Step 5: Solve for x
    x = 58,270,083,674.71/274,631.85
  6. Step 6: Final answer
    x = 212,175.26

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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.