Home / 313,470.49-432,721.68-211,633.88

Finding the Fourth Proportional to 313,470.49, 432,721.68 and 211,633.88

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Solution

The fourth proportional to 313,470.49, 432,721.68 and 211,633.88 is: 292,144.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,470.49 : 432,721.68 = 211,633.88 : x
  2. Step 2: Convert to fraction form
    313,470.49/432,721.68 = 211,633.88/x
  3. Step 3: Cross multiply
    313,470.49x = 432,721.68 × 211,633.88
  4. Step 4: Simplify right side
    313,470.49x = 91,578,565,934.91
  5. Step 5: Solve for x
    x = 91,578,565,934.91/313,470.49
  6. Step 6: Final answer
    x = 292,144.14

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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.