Home / 380,738.45-570,983.09-178,271.88

Finding the Fourth Proportional to 380,738.45, 570,983.09 and 178,271.88

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Solution

The fourth proportional to 380,738.45, 570,983.09 and 178,271.88 is: 267,349.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,738.45 : 570,983.09 = 178,271.88 : x
  2. Step 2: Convert to fraction form
    380,738.45/570,983.09 = 178,271.88/x
  3. Step 3: Cross multiply
    380,738.45x = 570,983.09 × 178,271.88
  4. Step 4: Simplify right side
    380,738.45x = 101,790,228,011.15
  5. Step 5: Solve for x
    x = 101,790,228,011.15/380,738.45
  6. Step 6: Final answer
    x = 267,349.49

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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.