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Finding the Fourth Proportional to 300,249.51, 450,374.57 and 122,756.52

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Solution

The fourth proportional to 300,249.51, 450,374.57 and 122,756.52 is: 184,134.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,249.51 : 450,374.57 = 122,756.52 : x
  2. Step 2: Convert to fraction form
    300,249.51/450,374.57 = 122,756.52/x
  3. Step 3: Cross multiply
    300,249.51x = 450,374.57 × 122,756.52
  4. Step 4: Simplify right side
    300,249.51x = 55,286,416,445.16
  5. Step 5: Solve for x
    x = 55,286,416,445.16/300,249.51
  6. Step 6: Final answer
    x = 184,134.91

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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.