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Finding the Fourth Proportional to 355,458.33, 490,535.77 and 202,494.26

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Solution

The fourth proportional to 355,458.33, 490,535.77 and 202,494.26 is: 279,443.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,458.33 : 490,535.77 = 202,494.26 : x
  2. Step 2: Convert to fraction form
    355,458.33/490,535.77 = 202,494.26/x
  3. Step 3: Cross multiply
    355,458.33x = 490,535.77 × 202,494.26
  4. Step 4: Simplify right side
    355,458.33x = 99,330,677,749.68
  5. Step 5: Solve for x
    x = 99,330,677,749.68/355,458.33
  6. Step 6: Final answer
    x = 279,443.94

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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.