Home / 270,198.32-405,304.40-128,010.28

Finding the Fourth Proportional to 270,198.32, 405,304.40 and 128,010.28

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Solution

The fourth proportional to 270,198.32, 405,304.40 and 128,010.28 is: 192,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,198.32 : 405,304.40 = 128,010.28 : x
  2. Step 2: Convert to fraction form
    270,198.32/405,304.40 = 128,010.28/x
  3. Step 3: Cross multiply
    270,198.32x = 405,304.40 × 128,010.28
  4. Step 4: Simplify right side
    270,198.32x = 51,883,129,729.23
  5. Step 5: Solve for x
    x = 51,883,129,729.23/270,198.32
  6. Step 6: Final answer
    x = 192,018.70

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1.5x scale

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.