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Finding the Fourth Proportional to 282,375.63, 389,684.67 and 155,051.73

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Solution

The fourth proportional to 282,375.63, 389,684.67 and 155,051.73 is: 213,974.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,375.63 : 389,684.67 = 155,051.73 : x
  2. Step 2: Convert to fraction form
    282,375.63/389,684.67 = 155,051.73/x
  3. Step 3: Cross multiply
    282,375.63x = 389,684.67 × 155,051.73
  4. Step 4: Simplify right side
    282,375.63x = 60,421,282,237.98
  5. Step 5: Solve for x
    x = 60,421,282,237.98/282,375.63
  6. Step 6: Final answer
    x = 213,974.85

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1.5x scale

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.