Home / 256,496.06-353,957.28-143,318.78

Finding the Fourth Proportional to 256,496.06, 353,957.28 and 143,318.78

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Solution

The fourth proportional to 256,496.06, 353,957.28 and 143,318.78 is: 197,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,496.06 : 353,957.28 = 143,318.78 : x
  2. Step 2: Convert to fraction form
    256,496.06/353,957.28 = 143,318.78/x
  3. Step 3: Cross multiply
    256,496.06x = 353,957.28 × 143,318.78
  4. Step 4: Simplify right side
    256,496.06x = 50,728,725,541.72
  5. Step 5: Solve for x
    x = 50,728,725,541.72/256,496.06
  6. Step 6: Final answer
    x = 197,775.85

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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.