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Finding the Fourth Proportional to 243,841.39, 365,628.43 and 135,803.59

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Solution

The fourth proportional to 243,841.39, 365,628.43 and 135,803.59 is: 203,630.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,841.39 : 365,628.43 = 135,803.59 : x
  2. Step 2: Convert to fraction form
    243,841.39/365,628.43 = 135,803.59/x
  3. Step 3: Cross multiply
    243,841.39x = 365,628.43 × 135,803.59
  4. Step 4: Simplify right side
    243,841.39x = 49,653,652,655.75
  5. Step 5: Solve for x
    x = 49,653,652,655.75/243,841.39
  6. Step 6: Final answer
    x = 203,630.95

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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.