Home / 281,858.24-388,964.48-154,531.20

Finding the Fourth Proportional to 281,858.24, 388,964.48 and 154,531.20

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Solution

The fourth proportional to 281,858.24, 388,964.48 and 154,531.20 is: 213,253.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,858.24 : 388,964.48 = 154,531.20 : x
  2. Step 2: Convert to fraction form
    281,858.24/388,964.48 = 154,531.20/x
  3. Step 3: Cross multiply
    281,858.24x = 388,964.48 × 154,531.20
  4. Step 4: Simplify right side
    281,858.24x = 60,107,147,851.78
  5. Step 5: Solve for x
    x = 60,107,147,851.78/281,858.24
  6. Step 6: Final answer
    x = 213,253.12

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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.