Home / 281,299.76-388,194.24-153,983.52

Finding the Fourth Proportional to 281,299.76, 388,194.24 and 153,983.52

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Solution

The fourth proportional to 281,299.76, 388,194.24 and 153,983.52 is: 212,497.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,299.76 : 388,194.24 = 153,983.52 : x
  2. Step 2: Convert to fraction form
    281,299.76/388,194.24 = 153,983.52/x
  3. Step 3: Cross multiply
    281,299.76x = 388,194.24 × 153,983.52
  4. Step 4: Simplify right side
    281,299.76x = 59,775,515,518.92
  5. Step 5: Solve for x
    x = 59,775,515,518.92/281,299.76
  6. Step 6: Final answer
    x = 212,497.57

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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.