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Finding the Fourth Proportional to 282,555, 389,926.44 and 155,229.48

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Solution

The fourth proportional to 282,555, 389,926.44 and 155,229.48 is: 214,216.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,555 : 389,926.44 = 155,229.48 : x
  2. Step 2: Convert to fraction form
    282,555/389,926.44 = 155,229.48/x
  3. Step 3: Cross multiply
    282,555x = 389,926.44 × 155,229.48
  4. Step 4: Simplify right side
    282,555x = 60,528,078,519.45
  5. Step 5: Solve for x
    x = 60,528,078,519.45/282,555
  6. Step 6: Final answer
    x = 214,216.98

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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.