Home / 281,530.97-388,551.40-172,616.05

Finding the Fourth Proportional to 281,530.97, 388,551.40 and 172,616.05

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Solution

The fourth proportional to 281,530.97, 388,551.40 and 172,616.05 is: 238,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,530.97 : 388,551.40 = 172,616.05 : x
  2. Step 2: Convert to fraction form
    281,530.97/388,551.40 = 172,616.05/x
  3. Step 3: Cross multiply
    281,530.97x = 388,551.40 × 172,616.05
  4. Step 4: Simplify right side
    281,530.97x = 67,070,207,889.97
  5. Step 5: Solve for x
    x = 67,070,207,889.97/281,530.97
  6. Step 6: Final answer
    x = 238,233.85

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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.