Home / 281,489.16-388,447.44-160,628.28

Finding the Fourth Proportional to 281,489.16, 388,447.44 and 160,628.28

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Solution

The fourth proportional to 281,489.16, 388,447.44 and 160,628.28 is: 221,662.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,489.16 : 388,447.44 = 160,628.28 : x
  2. Step 2: Convert to fraction form
    281,489.16/388,447.44 = 160,628.28/x
  3. Step 3: Cross multiply
    281,489.16x = 388,447.44 × 160,628.28
  4. Step 4: Simplify right side
    281,489.16x = 62,395,644,157.60
  5. Step 5: Solve for x
    x = 62,395,644,157.60/281,489.16
  6. Step 6: Final answer
    x = 221,662.69

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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.