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Finding the Fourth Proportional to 188,291.60, 259,779.80 and 111,834.08

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Solution

The fourth proportional to 188,291.60, 259,779.80 and 111,834.08 is: 154,293.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,291.60 : 259,779.80 = 111,834.08 : x
  2. Step 2: Convert to fraction form
    188,291.60/259,779.80 = 111,834.08/x
  3. Step 3: Cross multiply
    188,291.60x = 259,779.80 × 111,834.08
  4. Step 4: Simplify right side
    188,291.60x = 29,052,234,935.58
  5. Step 5: Solve for x
    x = 29,052,234,935.58/188,291.60
  6. Step 6: Final answer
    x = 154,293.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.