Home / 281,666.28-388,487.55-195,625.37

Finding the Fourth Proportional to 281,666.28, 388,487.55 and 195,625.37

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Solution

The fourth proportional to 281,666.28, 388,487.55 and 195,625.37 is: 269,815.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,666.28 : 388,487.55 = 195,625.37 : x
  2. Step 2: Convert to fraction form
    281,666.28/388,487.55 = 195,625.37/x
  3. Step 3: Cross multiply
    281,666.28x = 388,487.55 × 195,625.37
  4. Step 4: Simplify right side
    281,666.28x = 75,998,018,766.71
  5. Step 5: Solve for x
    x = 75,998,018,766.71/281,666.28
  6. Step 6: Final answer
    x = 269,815.82

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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.