Home / 355,474.10-533,345.82-213,418.57

Finding the Fourth Proportional to 355,474.10, 533,345.82 and 213,418.57

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Solution

The fourth proportional to 355,474.10, 533,345.82 and 213,418.57 is: 320,208.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,474.10 : 533,345.82 = 213,418.57 : x
  2. Step 2: Convert to fraction form
    355,474.10/533,345.82 = 213,418.57/x
  3. Step 3: Cross multiply
    355,474.10x = 533,345.82 × 213,418.57
  4. Step 4: Simplify right side
    355,474.10x = 113,825,902,219.88
  5. Step 5: Solve for x
    x = 113,825,902,219.88/355,474.10
  6. Step 6: Final answer
    x = 320,208.71

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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.