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Finding the Fourth Proportional to 363,373.88, 545,133.72 and 126,653

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Solution

The fourth proportional to 363,373.88, 545,133.72 and 126,653 is: 190,004.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,373.88 : 545,133.72 = 126,653 : x
  2. Step 2: Convert to fraction form
    363,373.88/545,133.72 = 126,653/x
  3. Step 3: Cross multiply
    363,373.88x = 545,133.72 × 126,653
  4. Step 4: Simplify right side
    363,373.88x = 69,042,821,039.16
  5. Step 5: Solve for x
    x = 69,042,821,039.16/363,373.88
  6. Step 6: Final answer
    x = 190,004.91

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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.