Home / 283,818.20-391,262.13-223,283.72

Finding the Fourth Proportional to 283,818.20, 391,262.13 and 223,283.72

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Solution

The fourth proportional to 283,818.20, 391,262.13 and 223,283.72 is: 307,811.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,818.20 : 391,262.13 = 223,283.72 : x
  2. Step 2: Convert to fraction form
    283,818.20/391,262.13 = 223,283.72/x
  3. Step 3: Cross multiply
    283,818.20x = 391,262.13 × 223,283.72
  4. Step 4: Simplify right side
    283,818.20x = 87,362,464,859.68
  5. Step 5: Solve for x
    x = 87,362,464,859.68/283,818.20
  6. Step 6: Final answer
    x = 307,811.36

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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.