Home / 256,878.07-384,896.33-136,807.54

Finding the Fourth Proportional to 256,878.07, 384,896.33 and 136,807.54

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Solution

The fourth proportional to 256,878.07, 384,896.33 and 136,807.54 is: 204,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,878.07 : 384,896.33 = 136,807.54 : x
  2. Step 2: Convert to fraction form
    256,878.07/384,896.33 = 136,807.54/x
  3. Step 3: Cross multiply
    256,878.07x = 384,896.33 × 136,807.54
  4. Step 4: Simplify right side
    256,878.07x = 52,656,718,929.08
  5. Step 5: Solve for x
    x = 52,656,718,929.08/256,878.07
  6. Step 6: Final answer
    x = 204,987.21

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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.