Home / 307,720.06-424,318.91-200,090.50

Finding the Fourth Proportional to 307,720.06, 424,318.91 and 200,090.50

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Solution

The fourth proportional to 307,720.06, 424,318.91 and 200,090.50 is: 275,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,720.06 : 424,318.91 = 200,090.50 : x
  2. Step 2: Convert to fraction form
    307,720.06/424,318.91 = 200,090.50/x
  3. Step 3: Cross multiply
    307,720.06x = 424,318.91 × 200,090.50
  4. Step 4: Simplify right side
    307,720.06x = 84,902,183,186.90
  5. Step 5: Solve for x
    x = 84,902,183,186.90/307,720.06
  6. Step 6: Final answer
    x = 275,907.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.