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Finding the Fourth Proportional to 245,354.88, 368,071.20 and 79,104

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Solution

The fourth proportional to 245,354.88, 368,071.20 and 79,104 is: 118,668.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,354.88 : 368,071.20 = 79,104 : x
  2. Step 2: Convert to fraction form
    245,354.88/368,071.20 = 79,104/x
  3. Step 3: Cross multiply
    245,354.88x = 368,071.20 × 79,104
  4. Step 4: Simplify right side
    245,354.88x = 29,115,904,204.80
  5. Step 5: Solve for x
    x = 29,115,904,204.80/245,354.88
  6. Step 6: Final answer
    x = 118,668.54

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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.