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Finding the Fourth Proportional to 279,187.59, 418,538.39 and 179,376.15

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Solution

The fourth proportional to 279,187.59, 418,538.39 and 179,376.15 is: 268,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,187.59 : 418,538.39 = 179,376.15 : x
  2. Step 2: Convert to fraction form
    279,187.59/418,538.39 = 179,376.15/x
  3. Step 3: Cross multiply
    279,187.59x = 418,538.39 × 179,376.15
  4. Step 4: Simplify right side
    279,187.59x = 75,075,804,128.52
  5. Step 5: Solve for x
    x = 75,075,804,128.52/279,187.59
  6. Step 6: Final answer
    x = 268,908.10

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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.