Home / 281,558.08-388,550.22-154,238.20

Finding the Fourth Proportional to 281,558.08, 388,550.22 and 154,238.20

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Solution

The fourth proportional to 281,558.08, 388,550.22 and 154,238.20 is: 212,848.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,558.08 : 388,550.22 = 154,238.20 : x
  2. Step 2: Convert to fraction form
    281,558.08/388,550.22 = 154,238.20/x
  3. Step 3: Cross multiply
    281,558.08x = 388,550.22 × 154,238.20
  4. Step 4: Simplify right side
    281,558.08x = 59,929,286,542.40
  5. Step 5: Solve for x
    x = 59,929,286,542.40/281,558.08
  6. Step 6: Final answer
    x = 212,848.75

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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.