Home / 268,829.52-403,215.48-81,842.64

Finding the Fourth Proportional to 268,829.52, 403,215.48 and 81,842.64

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Solution

The fourth proportional to 268,829.52, 403,215.48 and 81,842.64 is: 122,755.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,829.52 : 403,215.48 = 81,842.64 : x
  2. Step 2: Convert to fraction form
    268,829.52/403,215.48 = 81,842.64/x
  3. Step 3: Cross multiply
    268,829.52x = 403,215.48 × 81,842.64
  4. Step 4: Simplify right side
    268,829.52x = 33,000,219,372.07
  5. Step 5: Solve for x
    x = 33,000,219,372.07/268,829.52
  6. Step 6: Final answer
    x = 122,755.19

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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.