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Finding the Fourth Proportional to 356,700.62, 492,250.86 and 203,759.06

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Solution

The fourth proportional to 356,700.62, 492,250.86 and 203,759.06 is: 281,189.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,700.62 : 492,250.86 = 203,759.06 : x
  2. Step 2: Convert to fraction form
    356,700.62/492,250.86 = 203,759.06/x
  3. Step 3: Cross multiply
    356,700.62x = 492,250.86 × 203,759.06
  4. Step 4: Simplify right side
    356,700.62x = 100,300,572,517.79
  5. Step 5: Solve for x
    x = 100,300,572,517.79/356,700.62
  6. Step 6: Final answer
    x = 281,189.79

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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.