Home / 216,836.46-299,234.30-121,361.58

Finding the Fourth Proportional to 216,836.46, 299,234.30 and 121,361.58

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Solution

The fourth proportional to 216,836.46, 299,234.30 and 121,361.58 is: 167,478.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,836.46 : 299,234.30 = 121,361.58 : x
  2. Step 2: Convert to fraction form
    216,836.46/299,234.30 = 121,361.58/x
  3. Step 3: Cross multiply
    216,836.46x = 299,234.30 × 121,361.58
  4. Step 4: Simplify right side
    216,836.46x = 36,315,546,831.39
  5. Step 5: Solve for x
    x = 36,315,546,831.39/216,836.46
  6. Step 6: Final answer
    x = 167,478.97

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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.