Home / 290,154.14-400,310.06-189,610.46

Finding the Fourth Proportional to 290,154.14, 400,310.06 and 189,610.46

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Solution

The fourth proportional to 290,154.14, 400,310.06 and 189,610.46 is: 261,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,154.14 : 400,310.06 = 189,610.46 : x
  2. Step 2: Convert to fraction form
    290,154.14/400,310.06 = 189,610.46/x
  3. Step 3: Cross multiply
    290,154.14x = 400,310.06 × 189,610.46
  4. Step 4: Simplify right side
    290,154.14x = 75,902,974,619.23
  5. Step 5: Solve for x
    x = 75,902,974,619.23/290,154.14
  6. Step 6: Final answer
    x = 261,595.35

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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.