Home / 446,564.20-669,954.30-131,031.40

Finding the Fourth Proportional to 446,564.20, 669,954.30 and 131,031.40

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Solution

The fourth proportional to 446,564.20, 669,954.30 and 131,031.40 is: 196,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,564.20 : 669,954.30 = 131,031.40 : x
  2. Step 2: Convert to fraction form
    446,564.20/669,954.30 = 131,031.40/x
  3. Step 3: Cross multiply
    446,564.20x = 669,954.30 × 131,031.40
  4. Step 4: Simplify right side
    446,564.20x = 87,785,049,865.02
  5. Step 5: Solve for x
    x = 87,785,049,865.02/446,564.20
  6. Step 6: Final answer
    x = 196,578.79

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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.