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Finding the Fourth Proportional to 403,016.71, 556,163.01 and 221,724.73

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Solution

The fourth proportional to 403,016.71, 556,163.01 and 221,724.73 is: 305,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,016.71 : 556,163.01 = 221,724.73 : x
  2. Step 2: Convert to fraction form
    403,016.71/556,163.01 = 221,724.73/x
  3. Step 3: Cross multiply
    403,016.71x = 556,163.01 × 221,724.73
  4. Step 4: Simplify right side
    403,016.71x = 123,315,093,228.24
  5. Step 5: Solve for x
    x = 123,315,093,228.24/403,016.71
  6. Step 6: Final answer
    x = 305,980.10

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1.5x scale

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.