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Finding the Fourth Proportional to 281,571.27, 388,596.21 and 160,730.73

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Solution

The fourth proportional to 281,571.27, 388,596.21 and 160,730.73 is: 221,824.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,571.27 : 388,596.21 = 160,730.73 : x
  2. Step 2: Convert to fraction form
    281,571.27/388,596.21 = 160,730.73/x
  3. Step 3: Cross multiply
    281,571.27x = 388,596.21 × 160,730.73
  4. Step 4: Simplify right side
    281,571.27x = 62,459,352,508.53
  5. Step 5: Solve for x
    x = 62,459,352,508.53/281,571.27
  6. Step 6: Final answer
    x = 221,824.31

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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.