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Finding the Fourth Proportional to 494,770, 742,153.20 and 179,153.12

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Solution

The fourth proportional to 494,770, 742,153.20 and 179,153.12 is: 268,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,770 : 742,153.20 = 179,153.12 : x
  2. Step 2: Convert to fraction form
    494,770/742,153.20 = 179,153.12/x
  3. Step 3: Cross multiply
    494,770x = 742,153.20 × 179,153.12
  4. Step 4: Simplify right side
    494,770x = 132,959,061,297.98
  5. Step 5: Solve for x
    x = 132,959,061,297.98/494,770
  6. Step 6: Final answer
    x = 268,729.03

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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.