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Finding the Fourth Proportional to 223,819.70, 335,729.55 and 221,486.90

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Solution

The fourth proportional to 223,819.70, 335,729.55 and 221,486.90 is: 332,230.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,819.70 : 335,729.55 = 221,486.90 : x
  2. Step 2: Convert to fraction form
    223,819.70/335,729.55 = 221,486.90/x
  3. Step 3: Cross multiply
    223,819.70x = 335,729.55 × 221,486.90
  4. Step 4: Simplify right side
    223,819.70x = 74,359,697,267.90
  5. Step 5: Solve for x
    x = 74,359,697,267.90/223,819.70
  6. Step 6: Final answer
    x = 332,230.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.