Home / 216,028.20-324,431.10-156,930.60

Finding the Fourth Proportional to 216,028.20, 324,431.10 and 156,930.60

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Solution

The fourth proportional to 216,028.20, 324,431.10 and 156,930.60 is: 235,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,028.20 : 324,431.10 = 156,930.60 : x
  2. Step 2: Convert to fraction form
    216,028.20/324,431.10 = 156,930.60/x
  3. Step 3: Cross multiply
    216,028.20x = 324,431.10 × 156,930.60
  4. Step 4: Simplify right side
    216,028.20x = 50,913,167,181.66
  5. Step 5: Solve for x
    x = 50,913,167,181.66/216,028.20
  6. Step 6: Final answer
    x = 235,678.34

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1.5x scale

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.