Home / 216,474.85-298,735.76-120,981.55

Finding the Fourth Proportional to 216,474.85, 298,735.76 and 120,981.55

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Solution

The fourth proportional to 216,474.85, 298,735.76 and 120,981.55 is: 166,954.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,474.85 : 298,735.76 = 120,981.55 : x
  2. Step 2: Convert to fraction form
    216,474.85/298,735.76 = 120,981.55/x
  3. Step 3: Cross multiply
    216,474.85x = 298,735.76 × 120,981.55
  4. Step 4: Simplify right side
    216,474.85x = 36,141,515,285.23
  5. Step 5: Solve for x
    x = 36,141,515,285.23/216,474.85
  6. Step 6: Final answer
    x = 166,954.80

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1.5x scale

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.