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Finding the Fourth Proportional to 200,683.78, 276,736.89 and 140,232.40

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Solution

The fourth proportional to 200,683.78, 276,736.89 and 140,232.40 is: 193,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,683.78 : 276,736.89 = 140,232.40 : x
  2. Step 2: Convert to fraction form
    200,683.78/276,736.89 = 140,232.40/x
  3. Step 3: Cross multiply
    200,683.78x = 276,736.89 × 140,232.40
  4. Step 4: Simplify right side
    200,683.78x = 38,807,478,253.24
  5. Step 5: Solve for x
    x = 38,807,478,253.24/200,683.78
  6. Step 6: Final answer
    x = 193,376.26

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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.