Home / 307,131.28-423,872.04-186,268.56

Finding the Fourth Proportional to 307,131.28, 423,872.04 and 186,268.56

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Solution

The fourth proportional to 307,131.28, 423,872.04 and 186,268.56 is: 257,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,131.28 : 423,872.04 = 186,268.56 : x
  2. Step 2: Convert to fraction form
    307,131.28/423,872.04 = 186,268.56/x
  3. Step 3: Cross multiply
    307,131.28x = 423,872.04 × 186,268.56
  4. Step 4: Simplify right side
    307,131.28x = 78,954,034,515.06
  5. Step 5: Solve for x
    x = 78,954,034,515.06/307,131.28
  6. Step 6: Final answer
    x = 257,069.34

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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.