Home / 382,980.25-574,470.38-102,490.21

Finding the Fourth Proportional to 382,980.25, 574,470.38 and 102,490.21

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Solution

The fourth proportional to 382,980.25, 574,470.38 and 102,490.21 is: 153,735.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,980.25 : 574,470.38 = 102,490.21 : x
  2. Step 2: Convert to fraction form
    382,980.25/574,470.38 = 102,490.21/x
  3. Step 3: Cross multiply
    382,980.25x = 574,470.38 × 102,490.21
  4. Step 4: Simplify right side
    382,980.25x = 58,877,589,884.98
  5. Step 5: Solve for x
    x = 58,877,589,884.98/382,980.25
  6. Step 6: Final answer
    x = 153,735.32

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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.