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Finding the Fourth Proportional to 356,949.02, 492,585 and 203,985.48

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Solution

The fourth proportional to 356,949.02, 492,585 and 203,985.48 is: 281,497.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,949.02 : 492,585 = 203,985.48 : x
  2. Step 2: Convert to fraction form
    356,949.02/492,585 = 203,985.48/x
  3. Step 3: Cross multiply
    356,949.02x = 492,585 × 203,985.48
  4. Step 4: Simplify right side
    356,949.02x = 100,480,187,665.80
  5. Step 5: Solve for x
    x = 100,480,187,665.80/356,949.02
  6. Step 6: Final answer
    x = 281,497.31

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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.