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Finding the Fourth Proportional to 165,874.40, 248,811.60 and 47,538.80

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Solution

The fourth proportional to 165,874.40, 248,811.60 and 47,538.80 is: 71,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,874.40 : 248,811.60 = 47,538.80 : x
  2. Step 2: Convert to fraction form
    165,874.40/248,811.60 = 47,538.80/x
  3. Step 3: Cross multiply
    165,874.40x = 248,811.60 × 47,538.80
  4. Step 4: Simplify right side
    165,874.40x = 11,828,204,890.08
  5. Step 5: Solve for x
    x = 11,828,204,890.08/165,874.40
  6. Step 6: Final answer
    x = 71,308.20

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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.