Home / 281,919.93-388,673.13-223,968.94

Finding the Fourth Proportional to 281,919.93, 388,673.13 and 223,968.94

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Solution

The fourth proportional to 281,919.93, 388,673.13 and 223,968.94 is: 308,778.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,919.93 : 388,673.13 = 223,968.94 : x
  2. Step 2: Convert to fraction form
    281,919.93/388,673.13 = 223,968.94/x
  3. Step 3: Cross multiply
    281,919.93x = 388,673.13 × 223,968.94
  4. Step 4: Simplify right side
    281,919.93x = 87,050,708,932.58
  5. Step 5: Solve for x
    x = 87,050,708,932.58/281,919.93
  6. Step 6: Final answer
    x = 308,778.13

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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.