Home / 281,220.04-388,083.66-153,895.64

Finding the Fourth Proportional to 281,220.04, 388,083.66 and 153,895.64

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Solution

The fourth proportional to 281,220.04, 388,083.66 and 153,895.64 is: 212,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,220.04 : 388,083.66 = 153,895.64 : x
  2. Step 2: Convert to fraction form
    281,220.04/388,083.66 = 153,895.64/x
  3. Step 3: Cross multiply
    281,220.04x = 388,083.66 × 153,895.64
  4. Step 4: Simplify right side
    281,220.04x = 59,724,383,229.24
  5. Step 5: Solve for x
    x = 59,724,383,229.24/281,220.04
  6. Step 6: Final answer
    x = 212,375.99

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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.