Home / 281,876.04-388,986.12-154,551.33

Finding the Fourth Proportional to 281,876.04, 388,986.12 and 154,551.33

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Solution

The fourth proportional to 281,876.04, 388,986.12 and 154,551.33 is: 213,279.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,876.04 : 388,986.12 = 154,551.33 : x
  2. Step 2: Convert to fraction form
    281,876.04/388,986.12 = 154,551.33/x
  3. Step 3: Cross multiply
    281,876.04x = 388,986.12 × 154,551.33
  4. Step 4: Simplify right side
    281,876.04x = 60,118,322,197.54
  5. Step 5: Solve for x
    x = 60,118,322,197.54/281,876.04
  6. Step 6: Final answer
    x = 213,279.29

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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.