Home / 269,455.10-403,923.45-209,450.30

Finding the Fourth Proportional to 269,455.10, 403,923.45 and 209,450.30

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Solution

The fourth proportional to 269,455.10, 403,923.45 and 209,450.30 is: 313,973.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,455.10 : 403,923.45 = 209,450.30 : x
  2. Step 2: Convert to fraction form
    269,455.10/403,923.45 = 209,450.30/x
  3. Step 3: Cross multiply
    269,455.10x = 403,923.45 × 209,450.30
  4. Step 4: Simplify right side
    269,455.10x = 84,601,887,779.54
  5. Step 5: Solve for x
    x = 84,601,887,779.54/269,455.10
  6. Step 6: Final answer
    x = 313,973.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.