Home / 282,253.05-389,513.63-154,940.25

Finding the Fourth Proportional to 282,253.05, 389,513.63 and 154,940.25

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Solution

The fourth proportional to 282,253.05, 389,513.63 and 154,940.25 is: 213,819.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,253.05 : 389,513.63 = 154,940.25 : x
  2. Step 2: Convert to fraction form
    282,253.05/389,513.63 = 154,940.25/x
  3. Step 3: Cross multiply
    282,253.05x = 389,513.63 × 154,940.25
  4. Step 4: Simplify right side
    282,253.05x = 60,351,338,435.91
  5. Step 5: Solve for x
    x = 60,351,338,435.91/282,253.05
  6. Step 6: Final answer
    x = 213,819.97

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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.