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Finding the Fourth Proportional to 377,328.88, 520,638.33 and 216,234.46

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Solution

The fourth proportional to 377,328.88, 520,638.33 and 216,234.46 is: 298,360.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,328.88 : 520,638.33 = 216,234.46 : x
  2. Step 2: Convert to fraction form
    377,328.88/520,638.33 = 216,234.46/x
  3. Step 3: Cross multiply
    377,328.88x = 520,638.33 × 216,234.46
  4. Step 4: Simplify right side
    377,328.88x = 112,579,948,142.85
  5. Step 5: Solve for x
    x = 112,579,948,142.85/377,328.88
  6. Step 6: Final answer
    x = 298,360.27

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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.