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Finding the Fourth Proportional to 370,420.96, 511,179.24 and 200,655.52

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Solution

The fourth proportional to 370,420.96, 511,179.24 and 200,655.52 is: 276,903.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,420.96 : 511,179.24 = 200,655.52 : x
  2. Step 2: Convert to fraction form
    370,420.96/511,179.24 = 200,655.52/x
  3. Step 3: Cross multiply
    370,420.96x = 511,179.24 × 200,655.52
  4. Step 4: Simplify right side
    370,420.96x = 102,570,936,215.41
  5. Step 5: Solve for x
    x = 102,570,936,215.41/370,420.96
  6. Step 6: Final answer
    x = 276,903.70

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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.