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Finding the Fourth Proportional to 300,957.88, 415,365.42 and 173,608.12

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Solution

The fourth proportional to 300,957.88, 415,365.42 and 173,608.12 is: 239,604.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,957.88 : 415,365.42 = 173,608.12 : x
  2. Step 2: Convert to fraction form
    300,957.88/415,365.42 = 173,608.12/x
  3. Step 3: Cross multiply
    300,957.88x = 415,365.42 × 173,608.12
  4. Step 4: Simplify right side
    300,957.88x = 72,110,809,679.21
  5. Step 5: Solve for x
    x = 72,110,809,679.21/300,957.88
  6. Step 6: Final answer
    x = 239,604.32

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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.