Home / 397,120.74-548,030.22-215,833.09

Finding the Fourth Proportional to 397,120.74, 548,030.22 and 215,833.09

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Solution

The fourth proportional to 397,120.74, 548,030.22 and 215,833.09 is: 297,851.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,120.74 : 548,030.22 = 215,833.09 : x
  2. Step 2: Convert to fraction form
    397,120.74/548,030.22 = 215,833.09/x
  3. Step 3: Cross multiply
    397,120.74x = 548,030.22 × 215,833.09
  4. Step 4: Simplify right side
    397,120.74x = 118,283,051,976.66
  5. Step 5: Solve for x
    x = 118,283,051,976.66/397,120.74
  6. Step 6: Final answer
    x = 297,851.61

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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.