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Finding the Fourth Proportional to 225,477.77, 338,268.50 and 67,709.21

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Solution

The fourth proportional to 225,477.77, 338,268.50 and 67,709.21 is: 101,579.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,477.77 : 338,268.50 = 67,709.21 : x
  2. Step 2: Convert to fraction form
    225,477.77/338,268.50 = 67,709.21/x
  3. Step 3: Cross multiply
    225,477.77x = 338,268.50 × 67,709.21
  4. Step 4: Simplify right side
    225,477.77x = 22,903,892,902.89
  5. Step 5: Solve for x
    x = 22,903,892,902.89/225,477.77
  6. Step 6: Final answer
    x = 101,579.38

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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.