Home / 282,433.08-389,764.44-155,111.43

Finding the Fourth Proportional to 282,433.08, 389,764.44 and 155,111.43

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Solution

The fourth proportional to 282,433.08, 389,764.44 and 155,111.43 is: 214,057.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,433.08 : 389,764.44 = 155,111.43 : x
  2. Step 2: Convert to fraction form
    282,433.08/389,764.44 = 155,111.43/x
  3. Step 3: Cross multiply
    282,433.08x = 389,764.44 × 155,111.43
  4. Step 4: Simplify right side
    282,433.08x = 60,456,919,651.55
  5. Step 5: Solve for x
    x = 60,456,919,651.55/282,433.08
  6. Step 6: Final answer
    x = 214,057.50

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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.