Home / 279,921.16-419,881.76-92,932.66

Finding the Fourth Proportional to 279,921.16, 419,881.76 and 92,932.66

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Solution

The fourth proportional to 279,921.16, 419,881.76 and 92,932.66 is: 139,399.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,921.16 : 419,881.76 = 92,932.66 : x
  2. Step 2: Convert to fraction form
    279,921.16/419,881.76 = 92,932.66/x
  3. Step 3: Cross multiply
    279,921.16x = 419,881.76 × 92,932.66
  4. Step 4: Simplify right side
    279,921.16x = 39,020,728,842.28
  5. Step 5: Solve for x
    x = 39,020,728,842.28/279,921.16
  6. Step 6: Final answer
    x = 139,399.00

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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.