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Finding the Fourth Proportional to 268,984.94, 403,144.83 and 135,903.02

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Solution

The fourth proportional to 268,984.94, 403,144.83 and 135,903.02 is: 203,686.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,984.94 : 403,144.83 = 135,903.02 : x
  2. Step 2: Convert to fraction form
    268,984.94/403,144.83 = 135,903.02/x
  3. Step 3: Cross multiply
    268,984.94x = 403,144.83 × 135,903.02
  4. Step 4: Simplify right side
    268,984.94x = 54,788,599,894.39
  5. Step 5: Solve for x
    x = 54,788,599,894.39/268,984.94
  6. Step 6: Final answer
    x = 203,686.50

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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.