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Finding the Fourth Proportional to 377,218.57, 520,567.94 and 216,087.67

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Solution

The fourth proportional to 377,218.57, 520,567.94 and 216,087.67 is: 298,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,218.57 : 520,567.94 = 216,087.67 : x
  2. Step 2: Convert to fraction form
    377,218.57/520,567.94 = 216,087.67/x
  3. Step 3: Cross multiply
    377,218.57x = 520,567.94 × 216,087.67
  4. Step 4: Simplify right side
    377,218.57x = 112,488,313,231.30
  5. Step 5: Solve for x
    x = 112,488,313,231.30/377,218.57
  6. Step 6: Final answer
    x = 298,204.60

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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.