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Finding the Fourth Proportional to 307,449.98, 458,118.47 and 273,912.34

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Solution

The fourth proportional to 307,449.98, 458,118.47 and 273,912.34 is: 408,145.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,449.98 : 458,118.47 = 273,912.34 : x
  2. Step 2: Convert to fraction form
    307,449.98/458,118.47 = 273,912.34/x
  3. Step 3: Cross multiply
    307,449.98x = 458,118.47 × 273,912.34
  4. Step 4: Simplify right side
    307,449.98x = 125,484,302,114.92
  5. Step 5: Solve for x
    x = 125,484,302,114.92/307,449.98
  6. Step 6: Final answer
    x = 408,145.42

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1.5x scale

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.