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Finding the Fourth Proportional to 164,381.44, 246,198.44 and 128,619.88

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Solution

The fourth proportional to 164,381.44, 246,198.44 and 128,619.88 is: 192,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,381.44 : 246,198.44 = 128,619.88 : x
  2. Step 2: Convert to fraction form
    164,381.44/246,198.44 = 128,619.88/x
  3. Step 3: Cross multiply
    164,381.44x = 246,198.44 × 128,619.88
  4. Step 4: Simplify right side
    164,381.44x = 31,666,013,808.99
  5. Step 5: Solve for x
    x = 31,666,013,808.99/164,381.44
  6. Step 6: Final answer
    x = 192,637.40

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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.