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Finding the Fourth Proportional to 351,012.60, 484,395.48 and 189,867.12

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Solution

The fourth proportional to 351,012.60, 484,395.48 and 189,867.12 is: 262,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,012.60 : 484,395.48 = 189,867.12 : x
  2. Step 2: Convert to fraction form
    351,012.60/484,395.48 = 189,867.12/x
  3. Step 3: Cross multiply
    351,012.60x = 484,395.48 × 189,867.12
  4. Step 4: Simplify right side
    351,012.60x = 91,970,774,728.62
  5. Step 5: Solve for x
    x = 91,970,774,728.62/351,012.60
  6. Step 6: Final answer
    x = 262,015.59

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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.