Home / 370,454.28-511,229.40-200,688.48

Finding the Fourth Proportional to 370,454.28, 511,229.40 and 200,688.48

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Solution

The fourth proportional to 370,454.28, 511,229.40 and 200,688.48 is: 276,951.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,454.28 : 511,229.40 = 200,688.48 : x
  2. Step 2: Convert to fraction form
    370,454.28/511,229.40 = 200,688.48/x
  3. Step 3: Cross multiply
    370,454.28x = 511,229.40 × 200,688.48
  4. Step 4: Simplify right side
    370,454.28x = 102,597,851,217.31
  5. Step 5: Solve for x
    x = 102,597,851,217.31/370,454.28
  6. Step 6: Final answer
    x = 276,951.45

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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.