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Finding the Fourth Proportional to 243,365.30, 335,840.52 and 135,936.92

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Solution

The fourth proportional to 243,365.30, 335,840.52 and 135,936.92 is: 187,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,365.30 : 335,840.52 = 135,936.92 : x
  2. Step 2: Convert to fraction form
    243,365.30/335,840.52 = 135,936.92/x
  3. Step 3: Cross multiply
    243,365.30x = 335,840.52 × 135,936.92
  4. Step 4: Simplify right side
    243,365.30x = 45,653,125,900.00
  5. Step 5: Solve for x
    x = 45,653,125,900.00/243,365.30
  6. Step 6: Final answer
    x = 187,590.94

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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.