Home / 304,789.07-420,814.43-190,242.20

Finding the Fourth Proportional to 304,789.07, 420,814.43 and 190,242.20

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Solution

The fourth proportional to 304,789.07, 420,814.43 and 190,242.20 is: 262,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,789.07 : 420,814.43 = 190,242.20 : x
  2. Step 2: Convert to fraction form
    304,789.07/420,814.43 = 190,242.20/x
  3. Step 3: Cross multiply
    304,789.07x = 420,814.43 × 190,242.20
  4. Step 4: Simplify right side
    304,789.07x = 80,056,659,899.66
  5. Step 5: Solve for x
    x = 80,056,659,899.66/304,789.07
  6. Step 6: Final answer
    x = 262,662.51

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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.