Home / 366,188.40-505,172.16-221,049.36

Finding the Fourth Proportional to 366,188.40, 505,172.16 and 221,049.36

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Solution

The fourth proportional to 366,188.40, 505,172.16 and 221,049.36 is: 304,946.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,188.40 : 505,172.16 = 221,049.36 : x
  2. Step 2: Convert to fraction form
    366,188.40/505,172.16 = 221,049.36/x
  3. Step 3: Cross multiply
    366,188.40x = 505,172.16 × 221,049.36
  4. Step 4: Simplify right side
    366,188.40x = 111,667,982,657.82
  5. Step 5: Solve for x
    x = 111,667,982,657.82/366,188.40
  6. Step 6: Final answer
    x = 304,946.81

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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.