Home / 268,837.67-403,315.02-81,844.31

Finding the Fourth Proportional to 268,837.67, 403,315.02 and 81,844.31

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Solution

The fourth proportional to 268,837.67, 403,315.02 and 81,844.31 is: 122,784.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,837.67 : 403,315.02 = 81,844.31 : x
  2. Step 2: Convert to fraction form
    268,837.67/403,315.02 = 81,844.31/x
  3. Step 3: Cross multiply
    268,837.67x = 403,315.02 × 81,844.31
  4. Step 4: Simplify right side
    268,837.67x = 33,009,037,507.96
  5. Step 5: Solve for x
    x = 33,009,037,507.96/268,837.67
  6. Step 6: Final answer
    x = 122,784.27

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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.