Home / 403,163.28-556,179.12-259,969.20

Finding the Fourth Proportional to 403,163.28, 556,179.12 and 259,969.20

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Solution

The fourth proportional to 403,163.28, 556,179.12 and 259,969.20 is: 358,637.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,163.28 : 556,179.12 = 259,969.20 : x
  2. Step 2: Convert to fraction form
    403,163.28/556,179.12 = 259,969.20/x
  3. Step 3: Cross multiply
    403,163.28x = 556,179.12 × 259,969.20
  4. Step 4: Simplify right side
    403,163.28x = 144,589,440,883.10
  5. Step 5: Solve for x
    x = 144,589,440,883.10/403,163.28
  6. Step 6: Final answer
    x = 358,637.43

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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.