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Finding the Fourth Proportional to 370,420.53, 511,180.29 and 200,654.61

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Solution

The fourth proportional to 370,420.53, 511,180.29 and 200,654.61 is: 276,903.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,420.53 : 511,180.29 = 200,654.61 : x
  2. Step 2: Convert to fraction form
    370,420.53/511,180.29 = 200,654.61/x
  3. Step 3: Cross multiply
    370,420.53x = 511,180.29 × 200,654.61
  4. Step 4: Simplify right side
    370,420.53x = 102,570,681,729.64
  5. Step 5: Solve for x
    x = 102,570,681,729.64/370,420.53
  6. Step 6: Final answer
    x = 276,903.34

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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.