Home / 214,276.68-321,475.20-79,338.72

Finding the Fourth Proportional to 214,276.68, 321,475.20 and 79,338.72

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Solution

The fourth proportional to 214,276.68, 321,475.20 and 79,338.72 is: 119,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,276.68 : 321,475.20 = 79,338.72 : x
  2. Step 2: Convert to fraction form
    214,276.68/321,475.20 = 79,338.72/x
  3. Step 3: Cross multiply
    214,276.68x = 321,475.20 × 79,338.72
  4. Step 4: Simplify right side
    214,276.68x = 25,505,430,879.74
  5. Step 5: Solve for x
    x = 25,505,430,879.74/214,276.68
  6. Step 6: Final answer
    x = 119,030.36

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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.