Home / 420,236.43-579,925.49-229,249.81

Finding the Fourth Proportional to 420,236.43, 579,925.49 and 229,249.81

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Solution

The fourth proportional to 420,236.43, 579,925.49 and 229,249.81 is: 316,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,236.43 : 579,925.49 = 229,249.81 : x
  2. Step 2: Convert to fraction form
    420,236.43/579,925.49 = 229,249.81/x
  3. Step 3: Cross multiply
    420,236.43x = 579,925.49 × 229,249.81
  4. Step 4: Simplify right side
    420,236.43x = 132,947,805,497.03
  5. Step 5: Solve for x
    x = 132,947,805,497.03/420,236.43
  6. Step 6: Final answer
    x = 316,364.30

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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.