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Finding the Fourth Proportional to 269,920.40, 404,880.60 and 82,941.20

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Solution

The fourth proportional to 269,920.40, 404,880.60 and 82,941.20 is: 124,411.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,920.40 : 404,880.60 = 82,941.20 : x
  2. Step 2: Convert to fraction form
    269,920.40/404,880.60 = 82,941.20/x
  3. Step 3: Cross multiply
    269,920.40x = 404,880.60 × 82,941.20
  4. Step 4: Simplify right side
    269,920.40x = 33,581,282,820.72
  5. Step 5: Solve for x
    x = 33,581,282,820.72/269,920.40
  6. Step 6: Final answer
    x = 124,411.80

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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.