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Finding the Fourth Proportional to 372,199.32, 513,640.44 and 202,433.94

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Solution

The fourth proportional to 372,199.32, 513,640.44 and 202,433.94 is: 279,361.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,199.32 : 513,640.44 = 202,433.94 : x
  2. Step 2: Convert to fraction form
    372,199.32/513,640.44 = 202,433.94/x
  3. Step 3: Cross multiply
    372,199.32x = 513,640.44 × 202,433.94
  4. Step 4: Simplify right side
    372,199.32x = 103,978,258,012.53
  5. Step 5: Solve for x
    x = 103,978,258,012.53/372,199.32
  6. Step 6: Final answer
    x = 279,361.76

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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.