Home / 281,834.90-388,932.16-154,511.38

Finding the Fourth Proportional to 281,834.90, 388,932.16 and 154,511.38

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Solution

The fourth proportional to 281,834.90, 388,932.16 and 154,511.38 is: 213,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,834.90 : 388,932.16 = 154,511.38 : x
  2. Step 2: Convert to fraction form
    281,834.90/388,932.16 = 154,511.38/x
  3. Step 3: Cross multiply
    281,834.90x = 388,932.16 × 154,511.38
  4. Step 4: Simplify right side
    281,834.90x = 60,094,444,767.98
  5. Step 5: Solve for x
    x = 60,094,444,767.98/281,834.90
  6. Step 6: Final answer
    x = 213,225.70

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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.