Home / 216,477.45-298,742.27-120,990.33

Finding the Fourth Proportional to 216,477.45, 298,742.27 and 120,990.33

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Solution

The fourth proportional to 216,477.45, 298,742.27 and 120,990.33 is: 166,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,477.45 : 298,742.27 = 120,990.33 : x
  2. Step 2: Convert to fraction form
    216,477.45/298,742.27 = 120,990.33/x
  3. Step 3: Cross multiply
    216,477.45x = 298,742.27 × 120,990.33
  4. Step 4: Simplify right side
    216,477.45x = 36,144,925,227.30
  5. Step 5: Solve for x
    x = 36,144,925,227.30/216,477.45
  6. Step 6: Final answer
    x = 166,968.55

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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.