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Finding the Fourth Proportional to 380,632.88, 570,770.48 and 220,754.22

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Solution

The fourth proportional to 380,632.88, 570,770.48 and 220,754.22 is: 331,027.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,632.88 : 570,770.48 = 220,754.22 : x
  2. Step 2: Convert to fraction form
    380,632.88/570,770.48 = 220,754.22/x
  3. Step 3: Cross multiply
    380,632.88x = 570,770.48 × 220,754.22
  4. Step 4: Simplify right side
    380,632.88x = 125,999,992,111.43
  5. Step 5: Solve for x
    x = 125,999,992,111.43/380,632.88
  6. Step 6: Final answer
    x = 331,027.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.