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Finding the Fourth Proportional to 214,525.60, 321,903.60 and 89,879.20

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Solution

The fourth proportional to 214,525.60, 321,903.60 and 89,879.20 is: 134,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,525.60 : 321,903.60 = 89,879.20 : x
  2. Step 2: Convert to fraction form
    214,525.60/321,903.60 = 89,879.20/x
  3. Step 3: Cross multiply
    214,525.60x = 321,903.60 × 89,879.20
  4. Step 4: Simplify right side
    214,525.60x = 28,932,438,045.12
  5. Step 5: Solve for x
    x = 28,932,438,045.12/214,525.60
  6. Step 6: Final answer
    x = 134,867.07

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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.