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Finding the Fourth Proportional to 243,346.02, 335,813.97 and 135,917.58

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Solution

The fourth proportional to 243,346.02, 335,813.97 and 135,917.58 is: 187,564.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,346.02 : 335,813.97 = 135,917.58 : x
  2. Step 2: Convert to fraction form
    243,346.02/335,813.97 = 135,917.58/x
  3. Step 3: Cross multiply
    243,346.02x = 335,813.97 × 135,917.58
  4. Step 4: Simplify right side
    243,346.02x = 45,643,022,132.59
  5. Step 5: Solve for x
    x = 45,643,022,132.59/243,346.02
  6. Step 6: Final answer
    x = 187,564.28

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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.