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Finding the Fourth Proportional to 281,782.08, 388,858.56 and 168,604.80

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Solution

The fourth proportional to 281,782.08, 388,858.56 and 168,604.80 is: 232,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,782.08 : 388,858.56 = 168,604.80 : x
  2. Step 2: Convert to fraction form
    281,782.08/388,858.56 = 168,604.80/x
  3. Step 3: Cross multiply
    281,782.08x = 388,858.56 × 168,604.80
  4. Step 4: Simplify right side
    281,782.08x = 65,563,419,737.09
  5. Step 5: Solve for x
    x = 65,563,419,737.09/281,782.08
  6. Step 6: Final answer
    x = 232,674.20

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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.