Home / 294,020.90-405,873.04-198,656.80

Finding the Fourth Proportional to 294,020.90, 405,873.04 and 198,656.80

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Solution

The fourth proportional to 294,020.90, 405,873.04 and 198,656.80 is: 274,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,020.90 : 405,873.04 = 198,656.80 : x
  2. Step 2: Convert to fraction form
    294,020.90/405,873.04 = 198,656.80/x
  3. Step 3: Cross multiply
    294,020.90x = 405,873.04 × 198,656.80
  4. Step 4: Simplify right side
    294,020.90x = 80,629,439,332.67
  5. Step 5: Solve for x
    x = 80,629,439,332.67/294,020.90
  6. Step 6: Final answer
    x = 274,230.30

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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.