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Finding the Fourth Proportional to 279,595.01, 418,977.79 and 205,360.13

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Solution

The fourth proportional to 279,595.01, 418,977.79 and 205,360.13 is: 307,735.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,595.01 : 418,977.79 = 205,360.13 : x
  2. Step 2: Convert to fraction form
    279,595.01/418,977.79 = 205,360.13/x
  3. Step 3: Cross multiply
    279,595.01x = 418,977.79 × 205,360.13
  4. Step 4: Simplify right side
    279,595.01x = 86,041,333,955.56
  5. Step 5: Solve for x
    x = 86,041,333,955.56/279,595.01
  6. Step 6: Final answer
    x = 307,735.58

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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.