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Finding the Fourth Proportional to 300,825.36, 415,150.54 and 171,784.88

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Solution

The fourth proportional to 300,825.36, 415,150.54 and 171,784.88 is: 237,069.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,825.36 : 415,150.54 = 171,784.88 : x
  2. Step 2: Convert to fraction form
    300,825.36/415,150.54 = 171,784.88/x
  3. Step 3: Cross multiply
    300,825.36x = 415,150.54 × 171,784.88
  4. Step 4: Simplify right side
    300,825.36x = 71,316,585,695.84
  5. Step 5: Solve for x
    x = 71,316,585,695.84/300,825.36
  6. Step 6: Final answer
    x = 237,069.73

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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.