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Finding the Fourth Proportional to 307,517.07, 461,272.86 and 97,155

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Solution

The fourth proportional to 307,517.07, 461,272.86 and 97,155 is: 145,731.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,517.07 : 461,272.86 = 97,155 : x
  2. Step 2: Convert to fraction form
    307,517.07/461,272.86 = 97,155/x
  3. Step 3: Cross multiply
    307,517.07x = 461,272.86 × 97,155
  4. Step 4: Simplify right side
    307,517.07x = 44,814,964,713.30
  5. Step 5: Solve for x
    x = 44,814,964,713.30/307,517.07
  6. Step 6: Final answer
    x = 145,731.63

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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.