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Finding the Fourth Proportional to 377,507.73, 520,972.91 and 216,393.27

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Solution

The fourth proportional to 377,507.73, 520,972.91 and 216,393.27 is: 298,629.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,507.73 : 520,972.91 = 216,393.27 : x
  2. Step 2: Convert to fraction form
    377,507.73/520,972.91 = 216,393.27/x
  3. Step 3: Cross multiply
    377,507.73x = 520,972.91 × 216,393.27
  4. Step 4: Simplify right side
    377,507.73x = 112,735,031,576.32
  5. Step 5: Solve for x
    x = 112,735,031,576.32/377,507.73
  6. Step 6: Final answer
    x = 298,629.73

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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.