Home / 217,830.30-326,745.45-143,180.70

Finding the Fourth Proportional to 217,830.30, 326,745.45 and 143,180.70

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Solution

The fourth proportional to 217,830.30, 326,745.45 and 143,180.70 is: 214,771.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,830.30 : 326,745.45 = 143,180.70 : x
  2. Step 2: Convert to fraction form
    217,830.30/326,745.45 = 143,180.70/x
  3. Step 3: Cross multiply
    217,830.30x = 326,745.45 × 143,180.70
  4. Step 4: Simplify right side
    217,830.30x = 46,783,642,252.82
  5. Step 5: Solve for x
    x = 46,783,642,252.82/217,830.30
  6. Step 6: Final answer
    x = 214,771.05

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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.