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Finding the Fourth Proportional to 395,433.77, 545,676.57 and 223,387.04

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Solution

The fourth proportional to 395,433.77, 545,676.57 and 223,387.04 is: 308,261.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,433.77 : 545,676.57 = 223,387.04 : x
  2. Step 2: Convert to fraction form
    395,433.77/545,676.57 = 223,387.04/x
  3. Step 3: Cross multiply
    395,433.77x = 545,676.57 × 223,387.04
  4. Step 4: Simplify right side
    395,433.77x = 121,897,073,769.65
  5. Step 5: Solve for x
    x = 121,897,073,769.65/395,433.77
  6. Step 6: Final answer
    x = 308,261.67

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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.