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Finding the Fourth Proportional to 281,623, 388,579.26 and 166,937.80

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Solution

The fourth proportional to 281,623, 388,579.26 and 166,937.80 is: 230,338.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,623 : 388,579.26 = 166,937.80 : x
  2. Step 2: Convert to fraction form
    281,623/388,579.26 = 166,937.80/x
  3. Step 3: Cross multiply
    281,623x = 388,579.26 × 166,937.80
  4. Step 4: Simplify right side
    281,623x = 64,868,566,790.03
  5. Step 5: Solve for x
    x = 64,868,566,790.03/281,623
  6. Step 6: Final answer
    x = 230,338.31

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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.