Home / 216,148.20-324,222-120,146.44

Finding the Fourth Proportional to 216,148.20, 324,222 and 120,146.44

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Solution

The fourth proportional to 216,148.20, 324,222 and 120,146.44 is: 180,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,148.20 : 324,222 = 120,146.44 : x
  2. Step 2: Convert to fraction form
    216,148.20/324,222 = 120,146.44/x
  3. Step 3: Cross multiply
    216,148.20x = 324,222 × 120,146.44
  4. Step 4: Simplify right side
    216,148.20x = 38,954,119,069.68
  5. Step 5: Solve for x
    x = 38,954,119,069.68/216,148.20
  6. Step 6: Final answer
    x = 180,219.49

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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.