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Finding the Fourth Proportional to 377,348.80, 520,754.85 and 216,234.96

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Solution

The fourth proportional to 377,348.80, 520,754.85 and 216,234.96 is: 298,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,348.80 : 520,754.85 = 216,234.96 : x
  2. Step 2: Convert to fraction form
    377,348.80/520,754.85 = 216,234.96/x
  3. Step 3: Cross multiply
    377,348.80x = 520,754.85 × 216,234.96
  4. Step 4: Simplify right side
    377,348.80x = 112,605,404,159.56
  5. Step 5: Solve for x
    x = 112,605,404,159.56/377,348.80
  6. Step 6: Final answer
    x = 298,411.98

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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.