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Finding the Fourth Proportional to 370,418.64, 511,177.82 and 200,652.80

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Solution

The fourth proportional to 370,418.64, 511,177.82 and 200,652.80 is: 276,900.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,418.64 : 511,177.82 = 200,652.80 : x
  2. Step 2: Convert to fraction form
    370,418.64/511,177.82 = 200,652.80/x
  3. Step 3: Cross multiply
    370,418.64x = 511,177.82 × 200,652.80
  4. Step 4: Simplify right side
    370,418.64x = 102,569,260,880.90
  5. Step 5: Solve for x
    x = 102,569,260,880.90/370,418.64
  6. Step 6: Final answer
    x = 276,900.92

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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.