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Finding the Fourth Proportional to 302,662.95, 417,474.86 and 189,288.87

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Solution

The fourth proportional to 302,662.95, 417,474.86 and 189,288.87 is: 261,093.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,662.95 : 417,474.86 = 189,288.87 : x
  2. Step 2: Convert to fraction form
    302,662.95/417,474.86 = 189,288.87/x
  3. Step 3: Cross multiply
    302,662.95x = 417,474.86 × 189,288.87
  4. Step 4: Simplify right side
    302,662.95x = 79,023,343,556.36
  5. Step 5: Solve for x
    x = 79,023,343,556.36/302,662.95
  6. Step 6: Final answer
    x = 261,093.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.