Home / 281,836.48-388,922.10-168,721.60

Finding the Fourth Proportional to 281,836.48, 388,922.10 and 168,721.60

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Solution

The fourth proportional to 281,836.48, 388,922.10 and 168,721.60 is: 232,828.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,836.48 : 388,922.10 = 168,721.60 : x
  2. Step 2: Convert to fraction form
    281,836.48/388,922.10 = 168,721.60/x
  3. Step 3: Cross multiply
    281,836.48x = 388,922.10 × 168,721.60
  4. Step 4: Simplify right side
    281,836.48x = 65,619,558,987.36
  5. Step 5: Solve for x
    x = 65,619,558,987.36/281,836.48
  6. Step 6: Final answer
    x = 232,828.48

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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.