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Finding the Fourth Proportional to 200,485.69, 276,670.24 and 109,845.09

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Solution

The fourth proportional to 200,485.69, 276,670.24 and 109,845.09 is: 151,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,485.69 : 276,670.24 = 109,845.09 : x
  2. Step 2: Convert to fraction form
    200,485.69/276,670.24 = 109,845.09/x
  3. Step 3: Cross multiply
    200,485.69x = 276,670.24 × 109,845.09
  4. Step 4: Simplify right side
    200,485.69x = 30,390,867,138.51
  5. Step 5: Solve for x
    x = 30,390,867,138.51/200,485.69
  6. Step 6: Final answer
    x = 151,586.22

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1.5x scale

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.