Home / 422,961.06-634,607.64-186,137.62

Finding the Fourth Proportional to 422,961.06, 634,607.64 and 186,137.62

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Solution

The fourth proportional to 422,961.06, 634,607.64 and 186,137.62 is: 279,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,961.06 : 634,607.64 = 186,137.62 : x
  2. Step 2: Convert to fraction form
    422,961.06/634,607.64 = 186,137.62/x
  3. Step 3: Cross multiply
    422,961.06x = 634,607.64 × 186,137.62
  4. Step 4: Simplify right side
    422,961.06x = 118,124,354,156.90
  5. Step 5: Solve for x
    x = 118,124,354,156.90/422,961.06
  6. Step 6: Final answer
    x = 279,279.50

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1.5x scale

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.