Home / 279,289.16-417,036.33-271,721.96

Finding the Fourth Proportional to 279,289.16, 417,036.33 and 271,721.96

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Solution

The fourth proportional to 279,289.16, 417,036.33 and 271,721.96 is: 405,736.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,289.16 : 417,036.33 = 271,721.96 : x
  2. Step 2: Convert to fraction form
    279,289.16/417,036.33 = 271,721.96/x
  3. Step 3: Cross multiply
    279,289.16x = 417,036.33 × 271,721.96
  4. Step 4: Simplify right side
    279,289.16x = 113,317,928,978.81
  5. Step 5: Solve for x
    x = 113,317,928,978.81/279,289.16
  6. Step 6: Final answer
    x = 405,736.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.