Home / 216,831.60-324,984.96-98,383.68

Finding the Fourth Proportional to 216,831.60, 324,984.96 and 98,383.68

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Solution

The fourth proportional to 216,831.60, 324,984.96 and 98,383.68 is: 147,456.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,831.60 : 324,984.96 = 98,383.68 : x
  2. Step 2: Convert to fraction form
    216,831.60/324,984.96 = 98,383.68/x
  3. Step 3: Cross multiply
    216,831.60x = 324,984.96 × 98,383.68
  4. Step 4: Simplify right side
    216,831.60x = 31,973,216,309.45
  5. Step 5: Solve for x
    x = 31,973,216,309.45/216,831.60
  6. Step 6: Final answer
    x = 147,456.44

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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.