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Finding the Fourth Proportional to 395,020.56, 545,126.04 and 225,251.04

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Solution

The fourth proportional to 395,020.56, 545,126.04 and 225,251.04 is: 310,845.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,020.56 : 545,126.04 = 225,251.04 : x
  2. Step 2: Convert to fraction form
    395,020.56/545,126.04 = 225,251.04/x
  3. Step 3: Cross multiply
    395,020.56x = 545,126.04 × 225,251.04
  4. Step 4: Simplify right side
    395,020.56x = 122,790,207,441.08
  5. Step 5: Solve for x
    x = 122,790,207,441.08/395,020.56
  6. Step 6: Final answer
    x = 310,845.10

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1.5x scale

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.