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Finding the Fourth Proportional to 440,394.75, 660,383.73 and 170,649.36

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Solution

The fourth proportional to 440,394.75, 660,383.73 and 170,649.36 is: 255,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,394.75 : 660,383.73 = 170,649.36 : x
  2. Step 2: Convert to fraction form
    440,394.75/660,383.73 = 170,649.36/x
  3. Step 3: Cross multiply
    440,394.75x = 660,383.73 × 170,649.36
  4. Step 4: Simplify right side
    440,394.75x = 112,694,060,878.91
  5. Step 5: Solve for x
    x = 112,694,060,878.91/440,394.75
  6. Step 6: Final answer
    x = 255,893.29

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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.