Home / 351,027.20-526,540.80-209,309.60

Finding the Fourth Proportional to 351,027.20, 526,540.80 and 209,309.60

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Solution

The fourth proportional to 351,027.20, 526,540.80 and 209,309.60 is: 313,964.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,027.20 : 526,540.80 = 209,309.60 : x
  2. Step 2: Convert to fraction form
    351,027.20/526,540.80 = 209,309.60/x
  3. Step 3: Cross multiply
    351,027.20x = 526,540.80 × 209,309.60
  4. Step 4: Simplify right side
    351,027.20x = 110,210,044,231.68
  5. Step 5: Solve for x
    x = 110,210,044,231.68/351,027.20
  6. Step 6: Final answer
    x = 313,964.40

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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.