Home / 282,128.20-422,754.78-163,505.32

Finding the Fourth Proportional to 282,128.20, 422,754.78 and 163,505.32

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Solution

The fourth proportional to 282,128.20, 422,754.78 and 163,505.32 is: 245,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,128.20 : 422,754.78 = 163,505.32 : x
  2. Step 2: Convert to fraction form
    282,128.20/422,754.78 = 163,505.32/x
  3. Step 3: Cross multiply
    282,128.20x = 422,754.78 × 163,505.32
  4. Step 4: Simplify right side
    282,128.20x = 69,122,655,585.43
  5. Step 5: Solve for x
    x = 69,122,655,585.43/282,128.20
  6. Step 6: Final answer
    x = 245,004.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.