Home / 281,824.25-388,916.64-154,499.94

Finding the Fourth Proportional to 281,824.25, 388,916.64 and 154,499.94

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Solution

The fourth proportional to 281,824.25, 388,916.64 and 154,499.94 is: 213,209.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,824.25 : 388,916.64 = 154,499.94 : x
  2. Step 2: Convert to fraction form
    281,824.25/388,916.64 = 154,499.94/x
  3. Step 3: Cross multiply
    281,824.25x = 388,916.64 × 154,499.94
  4. Step 4: Simplify right side
    281,824.25x = 60,087,597,545.00
  5. Step 5: Solve for x
    x = 60,087,597,545.00/281,824.25
  6. Step 6: Final answer
    x = 213,209.47

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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.