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Finding the Fourth Proportional to 301,272.48, 451,920.48 and 90,910.44

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Solution

The fourth proportional to 301,272.48, 451,920.48 and 90,910.44 is: 136,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,272.48 : 451,920.48 = 90,910.44 : x
  2. Step 2: Convert to fraction form
    301,272.48/451,920.48 = 90,910.44/x
  3. Step 3: Cross multiply
    301,272.48x = 451,920.48 × 90,910.44
  4. Step 4: Simplify right side
    301,272.48x = 41,084,289,681.81
  5. Step 5: Solve for x
    x = 41,084,289,681.81/301,272.48
  6. Step 6: Final answer
    x = 136,369.21

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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.