Home / 397,103.50-595,729.05-130,882.72

Finding the Fourth Proportional to 397,103.50, 595,729.05 and 130,882.72

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Solution

The fourth proportional to 397,103.50, 595,729.05 and 130,882.72 is: 196,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,103.50 : 595,729.05 = 130,882.72 : x
  2. Step 2: Convert to fraction form
    397,103.50/595,729.05 = 130,882.72/x
  3. Step 3: Cross multiply
    397,103.50x = 595,729.05 × 130,882.72
  4. Step 4: Simplify right side
    397,103.50x = 77,970,638,447.02
  5. Step 5: Solve for x
    x = 77,970,638,447.02/397,103.50
  6. Step 6: Final answer
    x = 196,348.40

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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.