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Finding the Fourth Proportional to 345,379.51, 476,638.44 and 192,417.61

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Solution

The fourth proportional to 345,379.51, 476,638.44 and 192,417.61 is: 265,544.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,379.51 : 476,638.44 = 192,417.61 : x
  2. Step 2: Convert to fraction form
    345,379.51/476,638.44 = 192,417.61/x
  3. Step 3: Cross multiply
    345,379.51x = 476,638.44 × 192,417.61
  4. Step 4: Simplify right side
    345,379.51x = 91,713,629,458.93
  5. Step 5: Solve for x
    x = 91,713,629,458.93/345,379.51
  6. Step 6: Final answer
    x = 265,544.50

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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.