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Finding the Fourth Proportional to 300,817.85, 415,089.09 and 179,915.04

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Solution

The fourth proportional to 300,817.85, 415,089.09 and 179,915.04 is: 248,259.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,817.85 : 415,089.09 = 179,915.04 : x
  2. Step 2: Convert to fraction form
    300,817.85/415,089.09 = 179,915.04/x
  3. Step 3: Cross multiply
    300,817.85x = 415,089.09 × 179,915.04
  4. Step 4: Simplify right side
    300,817.85x = 74,680,770,230.91
  5. Step 5: Solve for x
    x = 74,680,770,230.91/300,817.85
  6. Step 6: Final answer
    x = 248,259.11

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1.5x scale

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.