Home / 216,291.55-298,452.85-120,786.07

Finding the Fourth Proportional to 216,291.55, 298,452.85 and 120,786.07

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Solution

The fourth proportional to 216,291.55, 298,452.85 and 120,786.07 is: 166,668.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,291.55 : 298,452.85 = 120,786.07 : x
  2. Step 2: Convert to fraction form
    216,291.55/298,452.85 = 120,786.07/x
  3. Step 3: Cross multiply
    216,291.55x = 298,452.85 × 120,786.07
  4. Step 4: Simplify right side
    216,291.55x = 36,048,946,831.80
  5. Step 5: Solve for x
    x = 36,048,946,831.80/216,291.55
  6. Step 6: Final answer
    x = 166,668.31

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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.