Home / 209,977.60-314,966.40-131,245.60

Finding the Fourth Proportional to 209,977.60, 314,966.40 and 131,245.60

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Solution

The fourth proportional to 209,977.60, 314,966.40 and 131,245.60 is: 196,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,977.60 : 314,966.40 = 131,245.60 : x
  2. Step 2: Convert to fraction form
    209,977.60/314,966.40 = 131,245.60/x
  3. Step 3: Cross multiply
    209,977.60x = 314,966.40 × 131,245.60
  4. Step 4: Simplify right side
    209,977.60x = 41,337,954,147.84
  5. Step 5: Solve for x
    x = 41,337,954,147.84/209,977.60
  6. Step 6: Final answer
    x = 196,868.40

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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.