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Finding the Fourth Proportional to 275,749.60, 413,636.55 and 155,804.80

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Solution

The fourth proportional to 275,749.60, 413,636.55 and 155,804.80 is: 233,714.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,749.60 : 413,636.55 = 155,804.80 : x
  2. Step 2: Convert to fraction form
    275,749.60/413,636.55 = 155,804.80/x
  3. Step 3: Cross multiply
    275,749.60x = 413,636.55 × 155,804.80
  4. Step 4: Simplify right side
    275,749.60x = 64,446,559,945.44
  5. Step 5: Solve for x
    x = 64,446,559,945.44/275,749.60
  6. Step 6: Final answer
    x = 233,714.07

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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.