Home / 216,664.32-298,998.81-121,171.24

Finding the Fourth Proportional to 216,664.32, 298,998.81 and 121,171.24

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Solution

The fourth proportional to 216,664.32, 298,998.81 and 121,171.24 is: 167,217.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,664.32 : 298,998.81 = 121,171.24 : x
  2. Step 2: Convert to fraction form
    216,664.32/298,998.81 = 121,171.24/x
  3. Step 3: Cross multiply
    216,664.32x = 298,998.81 × 121,171.24
  4. Step 4: Simplify right side
    216,664.32x = 36,230,056,566.22
  5. Step 5: Solve for x
    x = 36,230,056,566.22/216,664.32
  6. Step 6: Final answer
    x = 167,217.46

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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.