Home / 283,947.12-391,848.12-156,620.88

Finding the Fourth Proportional to 283,947.12, 391,848.12 and 156,620.88

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Solution

The fourth proportional to 283,947.12, 391,848.12 and 156,620.88 is: 216,137.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,947.12 : 391,848.12 = 156,620.88 : x
  2. Step 2: Convert to fraction form
    283,947.12/391,848.12 = 156,620.88/x
  3. Step 3: Cross multiply
    283,947.12x = 391,848.12 × 156,620.88
  4. Step 4: Simplify right side
    283,947.12x = 61,371,597,380.75
  5. Step 5: Solve for x
    x = 61,371,597,380.75/283,947.12
  6. Step 6: Final answer
    x = 216,137.42

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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.