Home / 221,014.64-331,619.96-115,808.60

Finding the Fourth Proportional to 221,014.64, 331,619.96 and 115,808.60

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Solution

The fourth proportional to 221,014.64, 331,619.96 and 115,808.60 is: 173,764.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,014.64 : 331,619.96 = 115,808.60 : x
  2. Step 2: Convert to fraction form
    221,014.64/331,619.96 = 115,808.60/x
  3. Step 3: Cross multiply
    221,014.64x = 331,619.96 × 115,808.60
  4. Step 4: Simplify right side
    221,014.64x = 38,404,441,931.08
  5. Step 5: Solve for x
    x = 38,404,441,931.08/221,014.64
  6. Step 6: Final answer
    x = 173,764.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.