Home / 372,123.16-513,676.04-263,793.72

Finding the Fourth Proportional to 372,123.16, 513,676.04 and 263,793.72

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Solution

The fourth proportional to 372,123.16, 513,676.04 and 263,793.72 is: 364,138.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,123.16 : 513,676.04 = 263,793.72 : x
  2. Step 2: Convert to fraction form
    372,123.16/513,676.04 = 263,793.72/x
  3. Step 3: Cross multiply
    372,123.16x = 513,676.04 × 263,793.72
  4. Step 4: Simplify right side
    372,123.16x = 135,504,513,466.47
  5. Step 5: Solve for x
    x = 135,504,513,466.47/372,123.16
  6. Step 6: Final answer
    x = 364,138.89

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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.