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Finding the Fourth Proportional to 247,012.62, 340,876.53 and 133,835.64

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Solution

The fourth proportional to 247,012.62, 340,876.53 and 133,835.64 is: 184,692.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,012.62 : 340,876.53 = 133,835.64 : x
  2. Step 2: Convert to fraction form
    247,012.62/340,876.53 = 133,835.64/x
  3. Step 3: Cross multiply
    247,012.62x = 340,876.53 × 133,835.64
  4. Step 4: Simplify right side
    247,012.62x = 45,621,428,553.53
  5. Step 5: Solve for x
    x = 45,621,428,553.53/247,012.62
  6. Step 6: Final answer
    x = 184,692.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.