Home / 397,148.40-595,780.20-130,863.60

Finding the Fourth Proportional to 397,148.40, 595,780.20 and 130,863.60

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Solution

The fourth proportional to 397,148.40, 595,780.20 and 130,863.60 is: 196,314.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,148.40 : 595,780.20 = 130,863.60 : x
  2. Step 2: Convert to fraction form
    397,148.40/595,780.20 = 130,863.60/x
  3. Step 3: Cross multiply
    397,148.40x = 595,780.20 × 130,863.60
  4. Step 4: Simplify right side
    397,148.40x = 77,965,941,780.72
  5. Step 5: Solve for x
    x = 77,965,941,780.72/397,148.40
  6. Step 6: Final answer
    x = 196,314.38

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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.