Home / 283,631.68-391,406.50-154,571.19

Finding the Fourth Proportional to 283,631.68, 391,406.50 and 154,571.19

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Solution

The fourth proportional to 283,631.68, 391,406.50 and 154,571.19 is: 213,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,631.68 : 391,406.50 = 154,571.19 : x
  2. Step 2: Convert to fraction form
    283,631.68/391,406.50 = 154,571.19/x
  3. Step 3: Cross multiply
    283,631.68x = 391,406.50 × 154,571.19
  4. Step 4: Simplify right side
    283,631.68x = 60,500,168,536.37
  5. Step 5: Solve for x
    x = 60,500,168,536.37/283,631.68
  6. Step 6: Final answer
    x = 213,305.40

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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.