Home / 386,711.46-533,653.77-214,619.43

Finding the Fourth Proportional to 386,711.46, 533,653.77 and 214,619.43

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Solution

The fourth proportional to 386,711.46, 533,653.77 and 214,619.43 is: 296,170.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,711.46 : 533,653.77 = 214,619.43 : x
  2. Step 2: Convert to fraction form
    386,711.46/533,653.77 = 214,619.43/x
  3. Step 3: Cross multiply
    386,711.46x = 533,653.77 × 214,619.43
  4. Step 4: Simplify right side
    386,711.46x = 114,532,467,934.75
  5. Step 5: Solve for x
    x = 114,532,467,934.75/386,711.46
  6. Step 6: Final answer
    x = 296,170.35

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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.