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Finding the Fourth Proportional to 269,154.80, 403,732.20 and 254,639.60

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Solution

The fourth proportional to 269,154.80, 403,732.20 and 254,639.60 is: 381,959.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,154.80 : 403,732.20 = 254,639.60 : x
  2. Step 2: Convert to fraction form
    269,154.80/403,732.20 = 254,639.60/x
  3. Step 3: Cross multiply
    269,154.80x = 403,732.20 × 254,639.60
  4. Step 4: Simplify right side
    269,154.80x = 102,806,205,915.12
  5. Step 5: Solve for x
    x = 102,806,205,915.12/269,154.80
  6. Step 6: Final answer
    x = 381,959.40

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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.