Home / 252,255.44-378,128-163,565.30

Finding the Fourth Proportional to 252,255.44, 378,128 and 163,565.30

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Solution

The fourth proportional to 252,255.44, 378,128 and 163,565.30 is: 245,182.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,255.44 : 378,128 = 163,565.30 : x
  2. Step 2: Convert to fraction form
    252,255.44/378,128 = 163,565.30/x
  3. Step 3: Cross multiply
    252,255.44x = 378,128 × 163,565.30
  4. Step 4: Simplify right side
    252,255.44x = 61,848,619,758.40
  5. Step 5: Solve for x
    x = 61,848,619,758.40/252,255.44
  6. Step 6: Final answer
    x = 245,182.50

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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.