Home / 256,956.02-385,431.80-200,843.27

Finding the Fourth Proportional to 256,956.02, 385,431.80 and 200,843.27

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Solution

The fourth proportional to 256,956.02, 385,431.80 and 200,843.27 is: 301,263.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,956.02 : 385,431.80 = 200,843.27 : x
  2. Step 2: Convert to fraction form
    256,956.02/385,431.80 = 200,843.27/x
  3. Step 3: Cross multiply
    256,956.02x = 385,431.80 × 200,843.27
  4. Step 4: Simplify right side
    256,956.02x = 77,411,383,073.99
  5. Step 5: Solve for x
    x = 77,411,383,073.99/256,956.02
  6. Step 6: Final answer
    x = 301,263.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.