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Finding the Fourth Proportional to 269,641.20, 404,461.80 and 218,902.80

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Solution

The fourth proportional to 269,641.20, 404,461.80 and 218,902.80 is: 328,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,641.20 : 404,461.80 = 218,902.80 : x
  2. Step 2: Convert to fraction form
    269,641.20/404,461.80 = 218,902.80/x
  3. Step 3: Cross multiply
    269,641.20x = 404,461.80 × 218,902.80
  4. Step 4: Simplify right side
    269,641.20x = 88,537,820,513.04
  5. Step 5: Solve for x
    x = 88,537,820,513.04/269,641.20
  6. Step 6: Final answer
    x = 328,354.20

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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.