Home / 443,251.78-664,811.30-158,899.39

Finding the Fourth Proportional to 443,251.78, 664,811.30 and 158,899.39

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Solution

The fourth proportional to 443,251.78, 664,811.30 and 158,899.39 is: 238,325.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,251.78 : 664,811.30 = 158,899.39 : x
  2. Step 2: Convert to fraction form
    443,251.78/664,811.30 = 158,899.39/x
  3. Step 3: Cross multiply
    443,251.78x = 664,811.30 × 158,899.39
  4. Step 4: Simplify right side
    443,251.78x = 105,638,108,770.33
  5. Step 5: Solve for x
    x = 105,638,108,770.33/443,251.78
  6. Step 6: Final answer
    x = 238,325.29

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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.