Home / 356,109.03-491,431.89-194,979.07

Finding the Fourth Proportional to 356,109.03, 491,431.89 and 194,979.07

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Solution

The fourth proportional to 356,109.03, 491,431.89 and 194,979.07 is: 269,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,109.03 : 491,431.89 = 194,979.07 : x
  2. Step 2: Convert to fraction form
    356,109.03/491,431.89 = 194,979.07/x
  3. Step 3: Cross multiply
    356,109.03x = 491,431.89 × 194,979.07
  4. Step 4: Simplify right side
    356,109.03x = 95,818,934,226.00
  5. Step 5: Solve for x
    x = 95,818,934,226.00/356,109.03
  6. Step 6: Final answer
    x = 269,071.90

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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.