Home / 304,768.28-420,788.04-190,091.72

Finding the Fourth Proportional to 304,768.28, 420,788.04 and 190,091.72

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Solution

The fourth proportional to 304,768.28, 420,788.04 and 190,091.72 is: 262,456.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,768.28 : 420,788.04 = 190,091.72 : x
  2. Step 2: Convert to fraction form
    304,768.28/420,788.04 = 190,091.72/x
  3. Step 3: Cross multiply
    304,768.28x = 420,788.04 × 190,091.72
  4. Step 4: Simplify right side
    304,768.28x = 79,988,322,279.03
  5. Step 5: Solve for x
    x = 79,988,322,279.03/304,768.28
  6. Step 6: Final answer
    x = 262,456.19

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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.