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Finding the Fourth Proportional to 377,475.70, 520,938.02 and 216,357.59

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Solution

The fourth proportional to 377,475.70, 520,938.02 and 216,357.59 is: 298,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,475.70 : 520,938.02 = 216,357.59 : x
  2. Step 2: Convert to fraction form
    377,475.70/520,938.02 = 216,357.59/x
  3. Step 3: Cross multiply
    377,475.70x = 520,938.02 × 216,357.59
  4. Step 4: Simplify right side
    377,475.70x = 112,708,894,546.57
  5. Step 5: Solve for x
    x = 112,708,894,546.57/377,475.70
  6. Step 6: Final answer
    x = 298,585.83

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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.