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Finding the Fourth Proportional to 243,265.68, 335,706.84 and 135,835.56

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Solution

The fourth proportional to 243,265.68, 335,706.84 and 135,835.56 is: 187,453.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,265.68 : 335,706.84 = 135,835.56 : x
  2. Step 2: Convert to fraction form
    243,265.68/335,706.84 = 135,835.56/x
  3. Step 3: Cross multiply
    243,265.68x = 335,706.84 × 135,835.56
  4. Step 4: Simplify right side
    243,265.68x = 45,600,926,607.23
  5. Step 5: Solve for x
    x = 45,600,926,607.23/243,265.68
  6. Step 6: Final answer
    x = 187,453.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.