Home / 308,968.88-426,277.92-172,982.80

Finding the Fourth Proportional to 308,968.88, 426,277.92 and 172,982.80

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Solution

The fourth proportional to 308,968.88, 426,277.92 and 172,982.80 is: 238,660.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,968.88 : 426,277.92 = 172,982.80 : x
  2. Step 2: Convert to fraction form
    308,968.88/426,277.92 = 172,982.80/x
  3. Step 3: Cross multiply
    308,968.88x = 426,277.92 × 172,982.80
  4. Step 4: Simplify right side
    308,968.88x = 73,738,748,179.78
  5. Step 5: Solve for x
    x = 73,738,748,179.78/308,968.88
  6. Step 6: Final answer
    x = 238,660.76

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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.