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Finding the Fourth Proportional to 370,571.50, 556,601.10 and 221,103.46

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Solution

The fourth proportional to 370,571.50, 556,601.10 and 221,103.46 is: 332,099.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,571.50 : 556,601.10 = 221,103.46 : x
  2. Step 2: Convert to fraction form
    370,571.50/556,601.10 = 221,103.46/x
  3. Step 3: Cross multiply
    370,571.50x = 556,601.10 × 221,103.46
  4. Step 4: Simplify right side
    370,571.50x = 123,066,429,049.81
  5. Step 5: Solve for x
    x = 123,066,429,049.81/370,571.50
  6. Step 6: Final answer
    x = 332,099.01

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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.