Home / 383,141.21-528,734.79-222,089.72

Finding the Fourth Proportional to 383,141.21, 528,734.79 and 222,089.72

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Solution

The fourth proportional to 383,141.21, 528,734.79 and 222,089.72 is: 306,483.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,141.21 : 528,734.79 = 222,089.72 : x
  2. Step 2: Convert to fraction form
    383,141.21/528,734.79 = 222,089.72/x
  3. Step 3: Cross multiply
    383,141.21x = 528,734.79 × 222,089.72
  4. Step 4: Simplify right side
    383,141.21x = 117,426,558,821.69
  5. Step 5: Solve for x
    x = 117,426,558,821.69/383,141.21
  6. Step 6: Final answer
    x = 306,483.76

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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.