Home / 281,904.51-388,651.89-223,953.53

Finding the Fourth Proportional to 281,904.51, 388,651.89 and 223,953.53

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Solution

The fourth proportional to 281,904.51, 388,651.89 and 223,953.53 is: 308,756.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,904.51 : 388,651.89 = 223,953.53 : x
  2. Step 2: Convert to fraction form
    281,904.51/388,651.89 = 223,953.53/x
  3. Step 3: Cross multiply
    281,904.51x = 388,651.89 × 223,953.53
  4. Step 4: Simplify right side
    281,904.51x = 87,039,962,399.12
  5. Step 5: Solve for x
    x = 87,039,962,399.12/281,904.51
  6. Step 6: Final answer
    x = 308,756.90

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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.