Home / 212,234.16-318,483-123,527.28

Finding the Fourth Proportional to 212,234.16, 318,483 and 123,527.28

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Solution

The fourth proportional to 212,234.16, 318,483 and 123,527.28 is: 185,367.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,234.16 : 318,483 = 123,527.28 : x
  2. Step 2: Convert to fraction form
    212,234.16/318,483 = 123,527.28/x
  3. Step 3: Cross multiply
    212,234.16x = 318,483 × 123,527.28
  4. Step 4: Simplify right side
    212,234.16x = 39,341,338,716.24
  5. Step 5: Solve for x
    x = 39,341,338,716.24/212,234.16
  6. Step 6: Final answer
    x = 185,367.61

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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.