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Finding the Fourth Proportional to 214,449.60, 321,672.40 and 54,525.88

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Solution

The fourth proportional to 214,449.60, 321,672.40 and 54,525.88 is: 81,788.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,449.60 : 321,672.40 = 54,525.88 : x
  2. Step 2: Convert to fraction form
    214,449.60/321,672.40 = 54,525.88/x
  3. Step 3: Cross multiply
    214,449.60x = 321,672.40 × 54,525.88
  4. Step 4: Simplify right side
    214,449.60x = 17,539,470,681.71
  5. Step 5: Solve for x
    x = 17,539,470,681.71/214,449.60
  6. Step 6: Final answer
    x = 81,788.31

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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.