Home / 421,286.25-581,375.07-230,301.03

Finding the Fourth Proportional to 421,286.25, 581,375.07 and 230,301.03

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Solution

The fourth proportional to 421,286.25, 581,375.07 and 230,301.03 is: 317,815.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,286.25 : 581,375.07 = 230,301.03 : x
  2. Step 2: Convert to fraction form
    421,286.25/581,375.07 = 230,301.03/x
  3. Step 3: Cross multiply
    421,286.25x = 581,375.07 × 230,301.03
  4. Step 4: Simplify right side
    421,286.25x = 133,891,277,437.32
  5. Step 5: Solve for x
    x = 133,891,277,437.32/421,286.25
  6. Step 6: Final answer
    x = 317,815.45

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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.