Home / 218,183.42-301,091.23-122,688.07

Finding the Fourth Proportional to 218,183.42, 301,091.23 and 122,688.07

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Solution

The fourth proportional to 218,183.42, 301,091.23 and 122,688.07 is: 169,308.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,183.42 : 301,091.23 = 122,688.07 : x
  2. Step 2: Convert to fraction form
    218,183.42/301,091.23 = 122,688.07/x
  3. Step 3: Cross multiply
    218,183.42x = 301,091.23 × 122,688.07
  4. Step 4: Simplify right side
    218,183.42x = 36,940,301,902.63
  5. Step 5: Solve for x
    x = 36,940,301,902.63/218,183.42
  6. Step 6: Final answer
    x = 169,308.47

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1.5x scale

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.