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Finding the Fourth Proportional to 214,523.60, 321,785.40 and 74,235.60

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Solution

The fourth proportional to 214,523.60, 321,785.40 and 74,235.60 is: 111,353.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,523.60 : 321,785.40 = 74,235.60 : x
  2. Step 2: Convert to fraction form
    214,523.60/321,785.40 = 74,235.60/x
  3. Step 3: Cross multiply
    214,523.60x = 321,785.40 × 74,235.60
  4. Step 4: Simplify right side
    214,523.60x = 23,887,932,240.24
  5. Step 5: Solve for x
    x = 23,887,932,240.24/214,523.60
  6. Step 6: Final answer
    x = 111,353.40

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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.