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Finding the Fourth Proportional to 370,539.72, 511,331.13 and 200,770.20

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Solution

The fourth proportional to 370,539.72, 511,331.13 and 200,770.20 is: 277,055.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,539.72 : 511,331.13 = 200,770.20 : x
  2. Step 2: Convert to fraction form
    370,539.72/511,331.13 = 200,770.20/x
  3. Step 3: Cross multiply
    370,539.72x = 511,331.13 × 200,770.20
  4. Step 4: Simplify right side
    370,539.72x = 102,660,053,236.33
  5. Step 5: Solve for x
    x = 102,660,053,236.33/370,539.72
  6. Step 6: Final answer
    x = 277,055.46

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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.