Home / 279,208.35-418,812.56-195,132.72

Finding the Fourth Proportional to 279,208.35, 418,812.56 and 195,132.72

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Solution

The fourth proportional to 279,208.35, 418,812.56 and 195,132.72 is: 292,699.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,208.35 : 418,812.56 = 195,132.72 : x
  2. Step 2: Convert to fraction form
    279,208.35/418,812.56 = 195,132.72/x
  3. Step 3: Cross multiply
    279,208.35x = 418,812.56 × 195,132.72
  4. Step 4: Simplify right side
    279,208.35x = 81,724,033,027.30
  5. Step 5: Solve for x
    x = 81,724,033,027.30/279,208.35
  6. Step 6: Final answer
    x = 292,699.10

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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.