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Finding the Fourth Proportional to 377,487.56, 520,954.38 and 216,369.45

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Solution

The fourth proportional to 377,487.56, 520,954.38 and 216,369.45 is: 298,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,487.56 : 520,954.38 = 216,369.45 : x
  2. Step 2: Convert to fraction form
    377,487.56/520,954.38 = 216,369.45/x
  3. Step 3: Cross multiply
    377,487.56x = 520,954.38 × 216,369.45
  4. Step 4: Simplify right side
    377,487.56x = 112,718,612,675.69
  5. Step 5: Solve for x
    x = 112,718,612,675.69/377,487.56
  6. Step 6: Final answer
    x = 298,602.20

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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.