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Finding the Fourth Proportional to 281,852.80, 388,948.44 and 154,524.04

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Solution

The fourth proportional to 281,852.80, 388,948.44 and 154,524.04 is: 213,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,852.80 : 388,948.44 = 154,524.04 : x
  2. Step 2: Convert to fraction form
    281,852.80/388,948.44 = 154,524.04/x
  3. Step 3: Cross multiply
    281,852.80x = 388,948.44 × 154,524.04
  4. Step 4: Simplify right side
    281,852.80x = 60,101,884,300.50
  5. Step 5: Solve for x
    x = 60,101,884,300.50/281,852.80
  6. Step 6: Final answer
    x = 213,238.56

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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.