Home / 377,288.07-520,626.45-222,215.19

Finding the Fourth Proportional to 377,288.07, 520,626.45 and 222,215.19

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Solution

The fourth proportional to 377,288.07, 520,626.45 and 222,215.19 is: 306,638.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,288.07 : 520,626.45 = 222,215.19 : x
  2. Step 2: Convert to fraction form
    377,288.07/520,626.45 = 222,215.19/x
  3. Step 3: Cross multiply
    377,288.07x = 520,626.45 × 222,215.19
  4. Step 4: Simplify right side
    377,288.07x = 115,691,105,505.78
  5. Step 5: Solve for x
    x = 115,691,105,505.78/377,288.07
  6. Step 6: Final answer
    x = 306,638.65

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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.