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Finding the Fourth Proportional to 245,861.76, 368,856 and 133,513.14

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Solution

The fourth proportional to 245,861.76, 368,856 and 133,513.14 is: 200,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,861.76 : 368,856 = 133,513.14 : x
  2. Step 2: Convert to fraction form
    245,861.76/368,856 = 133,513.14/x
  3. Step 3: Cross multiply
    245,861.76x = 368,856 × 133,513.14
  4. Step 4: Simplify right side
    245,861.76x = 49,247,122,767.84
  5. Step 5: Solve for x
    x = 49,247,122,767.84/245,861.76
  6. Step 6: Final answer
    x = 200,304.12

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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.