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Finding the Fourth Proportional to 285,022.70, 393,270.08 and 171,843.02

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Solution

The fourth proportional to 285,022.70, 393,270.08 and 171,843.02 is: 237,106.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,022.70 : 393,270.08 = 171,843.02 : x
  2. Step 2: Convert to fraction form
    285,022.70/393,270.08 = 171,843.02/x
  3. Step 3: Cross multiply
    285,022.70x = 393,270.08 × 171,843.02
  4. Step 4: Simplify right side
    285,022.70x = 67,580,718,222.84
  5. Step 5: Solve for x
    x = 67,580,718,222.84/285,022.70
  6. Step 6: Final answer
    x = 237,106.44

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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.