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Finding the Fourth Proportional to 370,400.28, 511,152.42 and 200,634.39

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Solution

The fourth proportional to 370,400.28, 511,152.42 and 200,634.39 is: 276,875.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,400.28 : 511,152.42 = 200,634.39 : x
  2. Step 2: Convert to fraction form
    370,400.28/511,152.42 = 200,634.39/x
  3. Step 3: Cross multiply
    370,400.28x = 511,152.42 × 200,634.39
  4. Step 4: Simplify right side
    370,400.28x = 102,554,753,983.72
  5. Step 5: Solve for x
    x = 102,554,753,983.72/370,400.28
  6. Step 6: Final answer
    x = 276,875.48

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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.