Home / 281,621.48-388,641.66-168,422.36

Finding the Fourth Proportional to 281,621.48, 388,641.66 and 168,422.36

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Solution

The fourth proportional to 281,621.48, 388,641.66 and 168,422.36 is: 232,425.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,621.48 : 388,641.66 = 168,422.36 : x
  2. Step 2: Convert to fraction form
    281,621.48/388,641.66 = 168,422.36/x
  3. Step 3: Cross multiply
    281,621.48x = 388,641.66 × 168,422.36
  4. Step 4: Simplify right side
    281,621.48x = 65,455,945,571.52
  5. Step 5: Solve for x
    x = 65,455,945,571.52/281,621.48
  6. Step 6: Final answer
    x = 232,425.26

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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.