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Finding the Fourth Proportional to 303,883.32, 455,686.38 and 126,284.52

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Solution

The fourth proportional to 303,883.32, 455,686.38 and 126,284.52 is: 189,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,883.32 : 455,686.38 = 126,284.52 : x
  2. Step 2: Convert to fraction form
    303,883.32/455,686.38 = 126,284.52/x
  3. Step 3: Cross multiply
    303,883.32x = 455,686.38 × 126,284.52
  4. Step 4: Simplify right side
    303,883.32x = 57,546,135,768.84
  5. Step 5: Solve for x
    x = 57,546,135,768.84/303,883.32
  6. Step 6: Final answer
    x = 189,369.18

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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.