Home / 281,725.83-388,705.99-160,843.05

Finding the Fourth Proportional to 281,725.83, 388,705.99 and 160,843.05

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Solution

The fourth proportional to 281,725.83, 388,705.99 and 160,843.05 is: 221,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,725.83 : 388,705.99 = 160,843.05 : x
  2. Step 2: Convert to fraction form
    281,725.83/388,705.99 = 160,843.05/x
  3. Step 3: Cross multiply
    281,725.83x = 388,705.99 × 160,843.05
  4. Step 4: Simplify right side
    281,725.83x = 62,520,656,337.72
  5. Step 5: Solve for x
    x = 62,520,656,337.72/281,725.83
  6. Step 6: Final answer
    x = 221,920.21

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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.