Home / 370,610.91-556,660.35-221,142.96

Finding the Fourth Proportional to 370,610.91, 556,660.35 and 221,142.96

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Solution

The fourth proportional to 370,610.91, 556,660.35 and 221,142.96 is: 332,158.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,610.91 : 556,660.35 = 221,142.96 : x
  2. Step 2: Convert to fraction form
    370,610.91/556,660.35 = 221,142.96/x
  3. Step 3: Cross multiply
    370,610.91x = 556,660.35 × 221,142.96
  4. Step 4: Simplify right side
    370,610.91x = 123,101,517,513.64
  5. Step 5: Solve for x
    x = 123,101,517,513.64/370,610.91
  6. Step 6: Final answer
    x = 332,158.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.