Home / 383,168.31-528,788.70-213,402.48

Finding the Fourth Proportional to 383,168.31, 528,788.70 and 213,402.48

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Solution

The fourth proportional to 383,168.31, 528,788.70 and 213,402.48 is: 294,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,168.31 : 528,788.70 = 213,402.48 : x
  2. Step 2: Convert to fraction form
    383,168.31/528,788.70 = 213,402.48/x
  3. Step 3: Cross multiply
    383,168.31x = 528,788.70 × 213,402.48
  4. Step 4: Simplify right side
    383,168.31x = 112,844,819,975.98
  5. Step 5: Solve for x
    x = 112,844,819,975.98/383,168.31
  6. Step 6: Final answer
    x = 294,504.57

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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.