Home / 281,496.12-388,464.62-154,172.04

Finding the Fourth Proportional to 281,496.12, 388,464.62 and 154,172.04

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Solution

The fourth proportional to 281,496.12, 388,464.62 and 154,172.04 is: 212,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,496.12 : 388,464.62 = 154,172.04 : x
  2. Step 2: Convert to fraction form
    281,496.12/388,464.62 = 154,172.04/x
  3. Step 3: Cross multiply
    281,496.12x = 388,464.62 × 154,172.04
  4. Step 4: Simplify right side
    281,496.12x = 59,890,382,933.22
  5. Step 5: Solve for x
    x = 59,890,382,933.22/281,496.12
  6. Step 6: Final answer
    x = 212,757.40

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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.