Home / 283,734.30-391,556-156,414.46

Finding the Fourth Proportional to 283,734.30, 391,556 and 156,414.46

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Solution

The fourth proportional to 283,734.30, 391,556 and 156,414.46 is: 215,853.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,734.30 : 391,556 = 156,414.46 : x
  2. Step 2: Convert to fraction form
    283,734.30/391,556 = 156,414.46/x
  3. Step 3: Cross multiply
    283,734.30x = 391,556 × 156,414.46
  4. Step 4: Simplify right side
    283,734.30x = 61,245,020,299.76
  5. Step 5: Solve for x
    x = 61,245,020,299.76/283,734.30
  6. Step 6: Final answer
    x = 215,853.42

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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.