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Finding the Fourth Proportional to 377,283.69, 520,628.31 and 216,101.79

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Solution

The fourth proportional to 377,283.69, 520,628.31 and 216,101.79 is: 298,207.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,283.69 : 520,628.31 = 216,101.79 : x
  2. Step 2: Convert to fraction form
    377,283.69/520,628.31 = 216,101.79/x
  3. Step 3: Cross multiply
    377,283.69x = 520,628.31 × 216,101.79
  4. Step 4: Simplify right side
    377,283.69x = 112,508,709,715.68
  5. Step 5: Solve for x
    x = 112,508,709,715.68/377,283.69
  6. Step 6: Final answer
    x = 298,207.19

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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.