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Finding the Fourth Proportional to 383,351.45, 574,290.18 and 214,359.22

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Solution

The fourth proportional to 383,351.45, 574,290.18 and 214,359.22 is: 321,126.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,351.45 : 574,290.18 = 214,359.22 : x
  2. Step 2: Convert to fraction form
    383,351.45/574,290.18 = 214,359.22/x
  3. Step 3: Cross multiply
    383,351.45x = 574,290.18 × 214,359.22
  4. Step 4: Simplify right side
    383,351.45x = 123,104,393,602.73
  5. Step 5: Solve for x
    x = 123,104,393,602.73/383,351.45
  6. Step 6: Final answer
    x = 321,126.72

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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.