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Finding the Fourth Proportional to 275,987.03, 380,893.84 and 153,491.84

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Solution

The fourth proportional to 275,987.03, 380,893.84 and 153,491.84 is: 211,836.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,987.03 : 380,893.84 = 153,491.84 : x
  2. Step 2: Convert to fraction form
    275,987.03/380,893.84 = 153,491.84/x
  3. Step 3: Cross multiply
    275,987.03x = 380,893.84 × 153,491.84
  4. Step 4: Simplify right side
    275,987.03x = 58,464,096,346.27
  5. Step 5: Solve for x
    x = 58,464,096,346.27/275,987.03
  6. Step 6: Final answer
    x = 211,836.39

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1.5x scale

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.