Home / 274,633.85-378,961.53-153,765.65

Finding the Fourth Proportional to 274,633.85, 378,961.53 and 153,765.65

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Solution

The fourth proportional to 274,633.85, 378,961.53 and 153,765.65 is: 212,178.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,633.85 : 378,961.53 = 153,765.65 : x
  2. Step 2: Convert to fraction form
    274,633.85/378,961.53 = 153,765.65/x
  3. Step 3: Cross multiply
    274,633.85x = 378,961.53 × 153,765.65
  4. Step 4: Simplify right side
    274,633.85x = 58,271,265,985.44
  5. Step 5: Solve for x
    x = 58,271,265,985.44/274,633.85
  6. Step 6: Final answer
    x = 212,178.02

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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.