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Finding the Fourth Proportional to 200,395.55, 276,548.99 and 109,749.87

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Solution

The fourth proportional to 200,395.55, 276,548.99 and 109,749.87 is: 151,456.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,395.55 : 276,548.99 = 109,749.87 : x
  2. Step 2: Convert to fraction form
    200,395.55/276,548.99 = 109,749.87/x
  3. Step 3: Cross multiply
    200,395.55x = 276,548.99 × 109,749.87
  4. Step 4: Simplify right side
    200,395.55x = 30,351,215,152.38
  5. Step 5: Solve for x
    x = 30,351,215,152.38/200,395.55
  6. Step 6: Final answer
    x = 151,456.53

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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.