Home / 320,840.43-481,733.74-178,962.91

Finding the Fourth Proportional to 320,840.43, 481,733.74 and 178,962.91

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Solution

The fourth proportional to 320,840.43, 481,733.74 and 178,962.91 is: 268,708.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,840.43 : 481,733.74 = 178,962.91 : x
  2. Step 2: Convert to fraction form
    320,840.43/481,733.74 = 178,962.91/x
  3. Step 3: Cross multiply
    320,840.43x = 481,733.74 × 178,962.91
  4. Step 4: Simplify right side
    320,840.43x = 86,212,471,955.58
  5. Step 5: Solve for x
    x = 86,212,471,955.58/320,840.43
  6. Step 6: Final answer
    x = 268,708.25

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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.