Home / 313,470.43-432,721.61-211,633.83

Finding the Fourth Proportional to 313,470.43, 432,721.61 and 211,633.83

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Solution

The fourth proportional to 313,470.43, 432,721.61 and 211,633.83 is: 292,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,470.43 : 432,721.61 = 211,633.83 : x
  2. Step 2: Convert to fraction form
    313,470.43/432,721.61 = 211,633.83/x
  3. Step 3: Cross multiply
    313,470.43x = 432,721.61 × 211,633.83
  4. Step 4: Simplify right side
    313,470.43x = 91,578,531,648.07
  5. Step 5: Solve for x
    x = 91,578,531,648.07/313,470.43
  6. Step 6: Final answer
    x = 292,144.08

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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.