Home / 281,557.08-388,548.84-154,237.20

Finding the Fourth Proportional to 281,557.08, 388,548.84 and 154,237.20

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Solution

The fourth proportional to 281,557.08, 388,548.84 and 154,237.20 is: 212,847.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,557.08 : 388,548.84 = 154,237.20 : x
  2. Step 2: Convert to fraction form
    281,557.08/388,548.84 = 154,237.20/x
  3. Step 3: Cross multiply
    281,557.08x = 388,548.84 × 154,237.20
  4. Step 4: Simplify right side
    281,557.08x = 59,928,685,144.85
  5. Step 5: Solve for x
    x = 59,928,685,144.85/281,557.08
  6. Step 6: Final answer
    x = 212,847.37

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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.