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Finding the Fourth Proportional to 301,307.22, 451,995.39 and 90,957.78

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Solution

The fourth proportional to 301,307.22, 451,995.39 and 90,957.78 is: 136,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,307.22 : 451,995.39 = 90,957.78 : x
  2. Step 2: Convert to fraction form
    301,307.22/451,995.39 = 90,957.78/x
  3. Step 3: Cross multiply
    301,307.22x = 451,995.39 × 90,957.78
  4. Step 4: Simplify right side
    301,307.22x = 41,112,497,244.63
  5. Step 5: Solve for x
    x = 41,112,497,244.63/301,307.22
  6. Step 6: Final answer
    x = 136,447.10

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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.