Home / 351,128.45-484,505.30-213,235.66

Finding the Fourth Proportional to 351,128.45, 484,505.30 and 213,235.66

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Solution

The fourth proportional to 351,128.45, 484,505.30 and 213,235.66 is: 294,233.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,128.45 : 484,505.30 = 213,235.66 : x
  2. Step 2: Convert to fraction form
    351,128.45/484,505.30 = 213,235.66/x
  3. Step 3: Cross multiply
    351,128.45x = 484,505.30 × 213,235.66
  4. Step 4: Simplify right side
    351,128.45x = 103,313,809,620.53
  5. Step 5: Solve for x
    x = 103,313,809,620.53/351,128.45
  6. Step 6: Final answer
    x = 294,233.66

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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.