Home / 275,740.64-380,531.31-153,238.18

Finding the Fourth Proportional to 275,740.64, 380,531.31 and 153,238.18

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Solution

The fourth proportional to 275,740.64, 380,531.31 and 153,238.18 is: 211,473.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,740.64 : 380,531.31 = 153,238.18 : x
  2. Step 2: Convert to fraction form
    275,740.64/380,531.31 = 153,238.18/x
  3. Step 3: Cross multiply
    275,740.64x = 380,531.31 × 153,238.18
  4. Step 4: Simplify right side
    275,740.64x = 58,311,923,851.44
  5. Step 5: Solve for x
    x = 58,311,923,851.44/275,740.64
  6. Step 6: Final answer
    x = 211,473.81

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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.