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Finding the Fourth Proportional to 490,290.62, 733,853.97 and 253,307.30

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Solution

The fourth proportional to 490,290.62, 733,853.97 and 253,307.30 is: 379,143.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,290.62 : 733,853.97 = 253,307.30 : x
  2. Step 2: Convert to fraction form
    490,290.62/733,853.97 = 253,307.30/x
  3. Step 3: Cross multiply
    490,290.62x = 733,853.97 × 253,307.30
  4. Step 4: Simplify right side
    490,290.62x = 185,890,564,065.71
  5. Step 5: Solve for x
    x = 185,890,564,065.71/490,290.62
  6. Step 6: Final answer
    x = 379,143.63

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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.