Home / 351,012.80-526,519.20-140,801.60

Finding the Fourth Proportional to 351,012.80, 526,519.20 and 140,801.60

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Solution

The fourth proportional to 351,012.80, 526,519.20 and 140,801.60 is: 211,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,012.80 : 526,519.20 = 140,801.60 : x
  2. Step 2: Convert to fraction form
    351,012.80/526,519.20 = 140,801.60/x
  3. Step 3: Cross multiply
    351,012.80x = 526,519.20 × 140,801.60
  4. Step 4: Simplify right side
    351,012.80x = 74,134,745,790.72
  5. Step 5: Solve for x
    x = 74,134,745,790.72/351,012.80
  6. Step 6: Final answer
    x = 211,202.40

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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.