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Finding the Fourth Proportional to 269,927.20, 404,890.80 and 206,941.60

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Solution

The fourth proportional to 269,927.20, 404,890.80 and 206,941.60 is: 310,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,927.20 : 404,890.80 = 206,941.60 : x
  2. Step 2: Convert to fraction form
    269,927.20/404,890.80 = 206,941.60/x
  3. Step 3: Cross multiply
    269,927.20x = 404,890.80 × 206,941.60
  4. Step 4: Simplify right side
    269,927.20x = 83,788,749,977.28
  5. Step 5: Solve for x
    x = 83,788,749,977.28/269,927.20
  6. Step 6: Final answer
    x = 310,412.40

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1.5x scale

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.