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Finding the Fourth Proportional to 245,774.45, 368,362.79 and 133,187.69

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Solution

The fourth proportional to 245,774.45, 368,362.79 and 133,187.69 is: 199,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,774.45 : 368,362.79 = 133,187.69 : x
  2. Step 2: Convert to fraction form
    245,774.45/368,362.79 = 133,187.69/x
  3. Step 3: Cross multiply
    245,774.45x = 368,362.79 × 133,187.69
  4. Step 4: Simplify right side
    245,774.45x = 49,061,389,836.48
  5. Step 5: Solve for x
    x = 49,061,389,836.48/245,774.45
  6. Step 6: Final answer
    x = 199,619.57

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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.