Home / 420,255.48-579,941.04-229,268.82

Finding the Fourth Proportional to 420,255.48, 579,941.04 and 229,268.82

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Solution

The fourth proportional to 420,255.48, 579,941.04 and 229,268.82 is: 316,384.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,255.48 : 579,941.04 = 229,268.82 : x
  2. Step 2: Convert to fraction form
    420,255.48/579,941.04 = 229,268.82/x
  3. Step 3: Cross multiply
    420,255.48x = 579,941.04 × 229,268.82
  4. Step 4: Simplify right side
    420,255.48x = 132,962,397,910.37
  5. Step 5: Solve for x
    x = 132,962,397,910.37/420,255.48
  6. Step 6: Final answer
    x = 316,384.69

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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.