Home / 216,180.54-298,316.70-120,693.30

Finding the Fourth Proportional to 216,180.54, 298,316.70 and 120,693.30

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Solution

The fourth proportional to 216,180.54, 298,316.70 and 120,693.30 is: 166,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,180.54 : 298,316.70 = 120,693.30 : x
  2. Step 2: Convert to fraction form
    216,180.54/298,316.70 = 120,693.30/x
  3. Step 3: Cross multiply
    216,180.54x = 298,316.70 × 120,693.30
  4. Step 4: Simplify right side
    216,180.54x = 36,004,826,968.11
  5. Step 5: Solve for x
    x = 36,004,826,968.11/216,180.54
  6. Step 6: Final answer
    x = 166,549.81

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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.