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Finding the Fourth Proportional to 213,515.70, 294,639 and 118,016.70

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Solution

The fourth proportional to 213,515.70, 294,639 and 118,016.70 is: 162,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,515.70 : 294,639 = 118,016.70 : x
  2. Step 2: Convert to fraction form
    213,515.70/294,639 = 118,016.70/x
  3. Step 3: Cross multiply
    213,515.70x = 294,639 × 118,016.70
  4. Step 4: Simplify right side
    213,515.70x = 34,772,322,471.30
  5. Step 5: Solve for x
    x = 34,772,322,471.30/213,515.70
  6. Step 6: Final answer
    x = 162,856.05

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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.