Home / 289,286.40-433,735.20-131,433.60

Finding the Fourth Proportional to 289,286.40, 433,735.20 and 131,433.60

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Solution

The fourth proportional to 289,286.40, 433,735.20 and 131,433.60 is: 197,062.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,286.40 : 433,735.20 = 131,433.60 : x
  2. Step 2: Convert to fraction form
    289,286.40/433,735.20 = 131,433.60/x
  3. Step 3: Cross multiply
    289,286.40x = 433,735.20 × 131,433.60
  4. Step 4: Simplify right side
    289,286.40x = 57,007,378,782.72
  5. Step 5: Solve for x
    x = 57,007,378,782.72/289,286.40
  6. Step 6: Final answer
    x = 197,062.08

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1.5x scale

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.