Home / 356,921.34-492,542.57-203,949.80

Finding the Fourth Proportional to 356,921.34, 492,542.57 and 203,949.80

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Solution

The fourth proportional to 356,921.34, 492,542.57 and 203,949.80 is: 281,445.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,921.34 : 492,542.57 = 203,949.80 : x
  2. Step 2: Convert to fraction form
    356,921.34/492,542.57 = 203,949.80/x
  3. Step 3: Cross multiply
    356,921.34x = 492,542.57 × 203,949.80
  4. Step 4: Simplify right side
    356,921.34x = 100,453,958,537.18
  5. Step 5: Solve for x
    x = 100,453,958,537.18/356,921.34
  6. Step 6: Final answer
    x = 281,445.65

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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.