Home / 282,020.25-389,187.95-154,696.14

Finding the Fourth Proportional to 282,020.25, 389,187.95 and 154,696.14

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Solution

The fourth proportional to 282,020.25, 389,187.95 and 154,696.14 is: 213,480.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,020.25 : 389,187.95 = 154,696.14 : x
  2. Step 2: Convert to fraction form
    282,020.25/389,187.95 = 154,696.14/x
  3. Step 3: Cross multiply
    282,020.25x = 389,187.95 × 154,696.14
  4. Step 4: Simplify right side
    282,020.25x = 60,205,872,826.03
  5. Step 5: Solve for x
    x = 60,205,872,826.03/282,020.25
  6. Step 6: Final answer
    x = 213,480.67

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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.