Home / 393,623.81-590,403.23-109,321.04

Finding the Fourth Proportional to 393,623.81, 590,403.23 and 109,321.04

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Solution

The fourth proportional to 393,623.81, 590,403.23 and 109,321.04 is: 163,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,623.81 : 590,403.23 = 109,321.04 : x
  2. Step 2: Convert to fraction form
    393,623.81/590,403.23 = 109,321.04/x
  3. Step 3: Cross multiply
    393,623.81x = 590,403.23 × 109,321.04
  4. Step 4: Simplify right side
    393,623.81x = 64,543,496,093.26
  5. Step 5: Solve for x
    x = 64,543,496,093.26/393,623.81
  6. Step 6: Final answer
    x = 163,972.54

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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.