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Finding the Fourth Proportional to 445,090.95, 667,628.73 and 141,483.78

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Solution

The fourth proportional to 445,090.95, 667,628.73 and 141,483.78 is: 212,223.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,090.95 : 667,628.73 = 141,483.78 : x
  2. Step 2: Convert to fraction form
    445,090.95/667,628.73 = 141,483.78/x
  3. Step 3: Cross multiply
    445,090.95x = 667,628.73 × 141,483.78
  4. Step 4: Simplify right side
    445,090.95x = 94,458,636,357.00
  5. Step 5: Solve for x
    x = 94,458,636,357.00/445,090.95
  6. Step 6: Final answer
    x = 212,223.22

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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.