Home / 353,258.16-487,481.40-200,306.67

Finding the Fourth Proportional to 353,258.16, 487,481.40 and 200,306.67

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Solution

The fourth proportional to 353,258.16, 487,481.40 and 200,306.67 is: 276,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,258.16 : 487,481.40 = 200,306.67 : x
  2. Step 2: Convert to fraction form
    353,258.16/487,481.40 = 200,306.67/x
  3. Step 3: Cross multiply
    353,258.16x = 487,481.40 × 200,306.67
  4. Step 4: Simplify right side
    353,258.16x = 97,645,775,920.94
  5. Step 5: Solve for x
    x = 97,645,775,920.94/353,258.16
  6. Step 6: Final answer
    x = 276,414.78

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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.