Home / 330,022.55-494,146.89-209,426.58

Finding the Fourth Proportional to 330,022.55, 494,146.89 and 209,426.58

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Solution

The fourth proportional to 330,022.55, 494,146.89 and 209,426.58 is: 313,577.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,022.55 : 494,146.89 = 209,426.58 : x
  2. Step 2: Convert to fraction form
    330,022.55/494,146.89 = 209,426.58/x
  3. Step 3: Cross multiply
    330,022.55x = 494,146.89 × 209,426.58
  4. Step 4: Simplify right side
    330,022.55x = 103,487,493,190.34
  5. Step 5: Solve for x
    x = 103,487,493,190.34/330,022.55
  6. Step 6: Final answer
    x = 313,577.03

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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.