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Finding the Fourth Proportional to 281,525.28, 388,396.80 and 160,673.28

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Solution

The fourth proportional to 281,525.28, 388,396.80 and 160,673.28 is: 221,667.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,525.28 : 388,396.80 = 160,673.28 : x
  2. Step 2: Convert to fraction form
    281,525.28/388,396.80 = 160,673.28/x
  3. Step 3: Cross multiply
    281,525.28x = 388,396.80 × 160,673.28
  4. Step 4: Simplify right side
    281,525.28x = 62,404,987,797.50
  5. Step 5: Solve for x
    x = 62,404,987,797.50/281,525.28
  6. Step 6: Final answer
    x = 221,667.44

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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.