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Finding the Fourth Proportional to 377,502.89, 520,939.29 and 216,243.23

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Solution

The fourth proportional to 377,502.89, 520,939.29 and 216,243.23 is: 298,407.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,502.89 : 520,939.29 = 216,243.23 : x
  2. Step 2: Convert to fraction form
    377,502.89/520,939.29 = 216,243.23/x
  3. Step 3: Cross multiply
    377,502.89x = 520,939.29 × 216,243.23
  4. Step 4: Simplify right side
    377,502.89x = 112,649,592,098.81
  5. Step 5: Solve for x
    x = 112,649,592,098.81/377,502.89
  6. Step 6: Final answer
    x = 298,407.23

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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.