Home / 377,628.58-521,112.08-216,371.49

Finding the Fourth Proportional to 377,628.58, 521,112.08 and 216,371.49

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Solution

The fourth proportional to 377,628.58, 521,112.08 and 216,371.49 is: 298,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,628.58 : 521,112.08 = 216,371.49 : x
  2. Step 2: Convert to fraction form
    377,628.58/521,112.08 = 216,371.49/x
  3. Step 3: Cross multiply
    377,628.58x = 521,112.08 × 216,371.49
  4. Step 4: Simplify right side
    377,628.58x = 112,753,795,793.36
  5. Step 5: Solve for x
    x = 112,753,795,793.36/377,628.58
  6. Step 6: Final answer
    x = 298,583.85

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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.