Home / 420,242.22-579,943.47-229,255.46

Finding the Fourth Proportional to 420,242.22, 579,943.47 and 229,255.46

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Solution

The fourth proportional to 420,242.22, 579,943.47 and 229,255.46 is: 316,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,242.22 : 579,943.47 = 229,255.46 : x
  2. Step 2: Convert to fraction form
    420,242.22/579,943.47 = 229,255.46/x
  3. Step 3: Cross multiply
    420,242.22x = 579,943.47 × 229,255.46
  4. Step 4: Simplify right side
    420,242.22x = 132,955,204,089.13
  5. Step 5: Solve for x
    x = 132,955,204,089.13/420,242.22
  6. Step 6: Final answer
    x = 316,377.55

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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.