Home / 377,189.58-520,394.19-213,828.57

Finding the Fourth Proportional to 377,189.58, 520,394.19 and 213,828.57

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Solution

The fourth proportional to 377,189.58, 520,394.19 and 213,828.57 is: 295,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,189.58 : 520,394.19 = 213,828.57 : x
  2. Step 2: Convert to fraction form
    377,189.58/520,394.19 = 213,828.57/x
  3. Step 3: Cross multiply
    377,189.58x = 520,394.19 × 213,828.57
  4. Step 4: Simplify right side
    377,189.58x = 111,275,145,484.01
  5. Step 5: Solve for x
    x = 111,275,145,484.01/377,189.58
  6. Step 6: Final answer
    x = 295,011.19

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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.