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Finding the Fourth Proportional to 373,759.82, 515,781.23 and 203,995.16

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Solution

The fourth proportional to 373,759.82, 515,781.23 and 203,995.16 is: 281,509.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,759.82 : 515,781.23 = 203,995.16 : x
  2. Step 2: Convert to fraction form
    373,759.82/515,781.23 = 203,995.16/x
  3. Step 3: Cross multiply
    373,759.82x = 515,781.23 × 203,995.16
  4. Step 4: Simplify right side
    373,759.82x = 105,216,870,939.97
  5. Step 5: Solve for x
    x = 105,216,870,939.97/373,759.82
  6. Step 6: Final answer
    x = 281,509.32

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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.