Home / 279,815.90-419,723.85-92,827.40

Finding the Fourth Proportional to 279,815.90, 419,723.85 and 92,827.40

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Solution

The fourth proportional to 279,815.90, 419,723.85 and 92,827.40 is: 139,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,815.90 : 419,723.85 = 92,827.40 : x
  2. Step 2: Convert to fraction form
    279,815.90/419,723.85 = 92,827.40/x
  3. Step 3: Cross multiply
    279,815.90x = 419,723.85 × 92,827.40
  4. Step 4: Simplify right side
    279,815.90x = 38,961,873,713.49
  5. Step 5: Solve for x
    x = 38,961,873,713.49/279,815.90
  6. Step 6: Final answer
    x = 139,241.10

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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.