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Finding the Fourth Proportional to 221,927.64, 305,900.27 and 173,443.94

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Solution

The fourth proportional to 221,927.64, 305,900.27 and 173,443.94 is: 239,071.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,927.64 : 305,900.27 = 173,443.94 : x
  2. Step 2: Convert to fraction form
    221,927.64/305,900.27 = 173,443.94/x
  3. Step 3: Cross multiply
    221,927.64x = 305,900.27 × 173,443.94
  4. Step 4: Simplify right side
    221,927.64x = 53,056,548,075.86
  5. Step 5: Solve for x
    x = 53,056,548,075.86/221,927.64
  6. Step 6: Final answer
    x = 239,071.38

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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.