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Finding the Fourth Proportional to 303,556.14, 455,254.82 and 90,266.64

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Solution

The fourth proportional to 303,556.14, 455,254.82 and 90,266.64 is: 135,376.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,556.14 : 455,254.82 = 90,266.64 : x
  2. Step 2: Convert to fraction form
    303,556.14/455,254.82 = 90,266.64/x
  3. Step 3: Cross multiply
    303,556.14x = 455,254.82 × 90,266.64
  4. Step 4: Simplify right side
    303,556.14x = 41,094,322,945.20
  5. Step 5: Solve for x
    x = 41,094,322,945.20/303,556.14
  6. Step 6: Final answer
    x = 135,376.35

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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.