Home / 270,190.55-405,292.78-128,002.52

Finding the Fourth Proportional to 270,190.55, 405,292.78 and 128,002.52

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Solution

The fourth proportional to 270,190.55, 405,292.78 and 128,002.52 is: 192,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,190.55 : 405,292.78 = 128,002.52 : x
  2. Step 2: Convert to fraction form
    270,190.55/405,292.78 = 128,002.52/x
  3. Step 3: Cross multiply
    270,190.55x = 405,292.78 × 128,002.52
  4. Step 4: Simplify right side
    270,190.55x = 51,878,497,871.03
  5. Step 5: Solve for x
    x = 51,878,497,871.03/270,190.55
  6. Step 6: Final answer
    x = 192,007.08

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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.