Home / 279,899.40-419,580.30-92,814.60

Finding the Fourth Proportional to 279,899.40, 419,580.30 and 92,814.60

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Solution

The fourth proportional to 279,899.40, 419,580.30 and 92,814.60 is: 139,132.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,899.40 : 419,580.30 = 92,814.60 : x
  2. Step 2: Convert to fraction form
    279,899.40/419,580.30 = 92,814.60/x
  3. Step 3: Cross multiply
    279,899.40x = 419,580.30 × 92,814.60
  4. Step 4: Simplify right side
    279,899.40x = 38,943,177,712.38
  5. Step 5: Solve for x
    x = 38,943,177,712.38/279,899.40
  6. Step 6: Final answer
    x = 139,132.77

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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.