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Finding the Fourth Proportional to 228,314.58, 342,679.64 and 121,788.86

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Solution

The fourth proportional to 228,314.58, 342,679.64 and 121,788.86 is: 182,794.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,314.58 : 342,679.64 = 121,788.86 : x
  2. Step 2: Convert to fraction form
    228,314.58/342,679.64 = 121,788.86/x
  3. Step 3: Cross multiply
    228,314.58x = 342,679.64 × 121,788.86
  4. Step 4: Simplify right side
    228,314.58x = 41,734,560,378.47
  5. Step 5: Solve for x
    x = 41,734,560,378.47/228,314.58
  6. Step 6: Final answer
    x = 182,794.11

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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.