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Finding the Fourth Proportional to 221,361.55, 305,477.51 and 125,868.23

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Solution

The fourth proportional to 221,361.55, 305,477.51 and 125,868.23 is: 173,697.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,361.55 : 305,477.51 = 125,868.23 : x
  2. Step 2: Convert to fraction form
    221,361.55/305,477.51 = 125,868.23/x
  3. Step 3: Cross multiply
    221,361.55x = 305,477.51 × 125,868.23
  4. Step 4: Simplify right side
    221,361.55x = 38,449,913,488.51
  5. Step 5: Solve for x
    x = 38,449,913,488.51/221,361.55
  6. Step 6: Final answer
    x = 173,697.34

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.