Home / 281,439.24-388,382.22-154,114.80

Finding the Fourth Proportional to 281,439.24, 388,382.22 and 154,114.80

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Solution

The fourth proportional to 281,439.24, 388,382.22 and 154,114.80 is: 212,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,439.24 : 388,382.22 = 154,114.80 : x
  2. Step 2: Convert to fraction form
    281,439.24/388,382.22 = 154,114.80/x
  3. Step 3: Cross multiply
    281,439.24x = 388,382.22 × 154,114.80
  4. Step 4: Simplify right side
    281,439.24x = 59,855,448,158.86
  5. Step 5: Solve for x
    x = 59,855,448,158.86/281,439.24
  6. Step 6: Final answer
    x = 212,676.27

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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.