Home / 270,306.78-372,621.81-231,881.19

Finding the Fourth Proportional to 270,306.78, 372,621.81 and 231,881.19

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Solution

The fourth proportional to 270,306.78, 372,621.81 and 231,881.19 is: 319,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,306.78 : 372,621.81 = 231,881.19 : x
  2. Step 2: Convert to fraction form
    270,306.78/372,621.81 = 231,881.19/x
  3. Step 3: Cross multiply
    270,306.78x = 372,621.81 × 231,881.19
  4. Step 4: Simplify right side
    270,306.78x = 86,403,988,722.75
  5. Step 5: Solve for x
    x = 86,403,988,722.75/270,306.78
  6. Step 6: Final answer
    x = 319,651.58

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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.