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Finding the Fourth Proportional to 356,876.33, 492,487.02 and 203,961.29

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Solution

The fourth proportional to 356,876.33, 492,487.02 and 203,961.29 is: 281,465.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,876.33 : 492,487.02 = 203,961.29 : x
  2. Step 2: Convert to fraction form
    356,876.33/492,487.02 = 203,961.29/x
  3. Step 3: Cross multiply
    356,876.33x = 492,487.02 × 203,961.29
  4. Step 4: Simplify right side
    356,876.33x = 100,448,285,445.02
  5. Step 5: Solve for x
    x = 100,448,285,445.02/356,876.33
  6. Step 6: Final answer
    x = 281,465.25

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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.