Home / 422,941.10-634,553.80-156,723.05

Finding the Fourth Proportional to 422,941.10, 634,553.80 and 156,723.05

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Solution

The fourth proportional to 422,941.10, 634,553.80 and 156,723.05 is: 235,137.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,941.10 : 634,553.80 = 156,723.05 : x
  2. Step 2: Convert to fraction form
    422,941.10/634,553.80 = 156,723.05/x
  3. Step 3: Cross multiply
    422,941.10x = 634,553.80 × 156,723.05
  4. Step 4: Simplify right side
    422,941.10x = 99,449,208,119.67
  5. Step 5: Solve for x
    x = 99,449,208,119.67/422,941.10
  6. Step 6: Final answer
    x = 235,137.26

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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.