Home / 217,890.52-326,683.32-111,307.48

Finding the Fourth Proportional to 217,890.52, 326,683.32 and 111,307.48

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Solution

The fourth proportional to 217,890.52, 326,683.32 and 111,307.48 is: 166,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,890.52 : 326,683.32 = 111,307.48 : x
  2. Step 2: Convert to fraction form
    217,890.52/326,683.32 = 111,307.48/x
  3. Step 3: Cross multiply
    217,890.52x = 326,683.32 × 111,307.48
  4. Step 4: Simplify right side
    217,890.52x = 36,362,297,107.23
  5. Step 5: Solve for x
    x = 36,362,297,107.23/217,890.52
  6. Step 6: Final answer
    x = 166,883.34

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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.