Home / 286,540.20-429,810.30-137,072.42

Finding the Fourth Proportional to 286,540.20, 429,810.30 and 137,072.42

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Solution

The fourth proportional to 286,540.20, 429,810.30 and 137,072.42 is: 205,608.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,540.20 : 429,810.30 = 137,072.42 : x
  2. Step 2: Convert to fraction form
    286,540.20/429,810.30 = 137,072.42/x
  3. Step 3: Cross multiply
    286,540.20x = 429,810.30 × 137,072.42
  4. Step 4: Simplify right side
    286,540.20x = 58,915,137,961.93
  5. Step 5: Solve for x
    x = 58,915,137,961.93/286,540.20
  6. Step 6: Final answer
    x = 205,608.63

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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.