Home / 393,499.19-590,182.76-109,218.62

Finding the Fourth Proportional to 393,499.19, 590,182.76 and 109,218.62

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Solution

The fourth proportional to 393,499.19, 590,182.76 and 109,218.62 is: 163,809.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,499.19 : 590,182.76 = 109,218.62 : x
  2. Step 2: Convert to fraction form
    393,499.19/590,182.76 = 109,218.62/x
  3. Step 3: Cross multiply
    393,499.19x = 590,182.76 × 109,218.62
  4. Step 4: Simplify right side
    393,499.19x = 64,458,947,729.14
  5. Step 5: Solve for x
    x = 64,458,947,729.14/393,499.19
  6. Step 6: Final answer
    x = 163,809.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.