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Finding the Fourth Proportional to 307,451.98, 458,121.45 and 273,914.34

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Solution

The fourth proportional to 307,451.98, 458,121.45 and 273,914.34 is: 408,148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,451.98 : 458,121.45 = 273,914.34 : x
  2. Step 2: Convert to fraction form
    307,451.98/458,121.45 = 273,914.34/x
  3. Step 3: Cross multiply
    307,451.98x = 458,121.45 × 273,914.34
  4. Step 4: Simplify right side
    307,451.98x = 125,486,034,616.59
  5. Step 5: Solve for x
    x = 125,486,034,616.59/307,451.98
  6. Step 6: Final answer
    x = 408,148.40

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.