Home / 397,131.51-548,045.69-215,843.46

Finding the Fourth Proportional to 397,131.51, 548,045.69 and 215,843.46

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Solution

The fourth proportional to 397,131.51, 548,045.69 and 215,843.46 is: 297,866.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,131.51 : 548,045.69 = 215,843.46 : x
  2. Step 2: Convert to fraction form
    397,131.51/548,045.69 = 215,843.46/x
  3. Step 3: Cross multiply
    397,131.51x = 548,045.69 × 215,843.46
  4. Step 4: Simplify right side
    397,131.51x = 118,292,077,967.69
  5. Step 5: Solve for x
    x = 118,292,077,967.69/397,131.51
  6. Step 6: Final answer
    x = 297,866.26

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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.