Home / 307,939.32-424,943.82-171,971.10

Finding the Fourth Proportional to 307,939.32, 424,943.82 and 171,971.10

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Solution

The fourth proportional to 307,939.32, 424,943.82 and 171,971.10 is: 237,313.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,939.32 : 424,943.82 = 171,971.10 : x
  2. Step 2: Convert to fraction form
    307,939.32/424,943.82 = 171,971.10/x
  3. Step 3: Cross multiply
    307,939.32x = 424,943.82 × 171,971.10
  4. Step 4: Simplify right side
    307,939.32x = 73,078,056,163.60
  5. Step 5: Solve for x
    x = 73,078,056,163.60/307,939.32
  6. Step 6: Final answer
    x = 237,313.17

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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.