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Finding the Fourth Proportional to 511,728.22, 767,213.25 and 245,234.98

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Solution

The fourth proportional to 511,728.22, 767,213.25 and 245,234.98 is: 367,670.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,728.22 : 767,213.25 = 245,234.98 : x
  2. Step 2: Convert to fraction form
    511,728.22/767,213.25 = 245,234.98/x
  3. Step 3: Cross multiply
    511,728.22x = 767,213.25 × 245,234.98
  4. Step 4: Simplify right side
    511,728.22x = 188,147,526,019.49
  5. Step 5: Solve for x
    x = 188,147,526,019.49/511,728.22
  6. Step 6: Final answer
    x = 367,670.80

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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.