Home / 304,705.27-420,441.06-190,019.89

Finding the Fourth Proportional to 304,705.27, 420,441.06 and 190,019.89

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Solution

The fourth proportional to 304,705.27, 420,441.06 and 190,019.89 is: 262,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,705.27 : 420,441.06 = 190,019.89 : x
  2. Step 2: Convert to fraction form
    304,705.27/420,441.06 = 190,019.89/x
  3. Step 3: Cross multiply
    304,705.27x = 420,441.06 × 190,019.89
  4. Step 4: Simplify right side
    304,705.27x = 79,892,163,972.68
  5. Step 5: Solve for x
    x = 79,892,163,972.68/304,705.27
  6. Step 6: Final answer
    x = 262,194.89

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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.