Home / 422,943.10-634,556.80-156,725.06

Finding the Fourth Proportional to 422,943.10, 634,556.80 and 156,725.06

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Solution

The fourth proportional to 422,943.10, 634,556.80 and 156,725.06 is: 235,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,943.10 : 634,556.80 = 156,725.06 : x
  2. Step 2: Convert to fraction form
    422,943.10/634,556.80 = 156,725.06/x
  3. Step 3: Cross multiply
    422,943.10x = 634,556.80 × 156,725.06
  4. Step 4: Simplify right side
    422,943.10x = 99,450,952,553.41
  5. Step 5: Solve for x
    x = 99,450,952,553.41/422,943.10
  6. Step 6: Final answer
    x = 235,140.26

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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.