Home / 212,288.09-318,508.67-107,027.78

Finding the Fourth Proportional to 212,288.09, 318,508.67 and 107,027.78

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Solution

The fourth proportional to 212,288.09, 318,508.67 and 107,027.78 is: 160,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,288.09 : 318,508.67 = 107,027.78 : x
  2. Step 2: Convert to fraction form
    212,288.09/318,508.67 = 107,027.78/x
  3. Step 3: Cross multiply
    212,288.09x = 318,508.67 × 107,027.78
  4. Step 4: Simplify right side
    212,288.09x = 34,089,274,535.88
  5. Step 5: Solve for x
    x = 34,089,274,535.88/212,288.09
  6. Step 6: Final answer
    x = 160,580.25

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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.