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Finding the Fourth Proportional to 377,502.44, 520,975.79 and 216,367.90

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Solution

The fourth proportional to 377,502.44, 520,975.79 and 216,367.90 is: 298,600.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,502.44 : 520,975.79 = 216,367.90 : x
  2. Step 2: Convert to fraction form
    377,502.44/520,975.79 = 216,367.90/x
  3. Step 3: Cross multiply
    377,502.44x = 520,975.79 × 216,367.90
  4. Step 4: Simplify right side
    377,502.44x = 112,722,433,946.42
  5. Step 5: Solve for x
    x = 112,722,433,946.42/377,502.44
  6. Step 6: Final answer
    x = 298,600.55

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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.