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Finding the Fourth Proportional to 243,402.54, 364,215.69 and 143,610.54

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Solution

The fourth proportional to 243,402.54, 364,215.69 and 143,610.54 is: 214,891.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,402.54 : 364,215.69 = 143,610.54 : x
  2. Step 2: Convert to fraction form
    243,402.54/364,215.69 = 143,610.54/x
  3. Step 3: Cross multiply
    243,402.54x = 364,215.69 × 143,610.54
  4. Step 4: Simplify right side
    243,402.54x = 52,305,211,917.37
  5. Step 5: Solve for x
    x = 52,305,211,917.37/243,402.54
  6. Step 6: Final answer
    x = 214,891.81

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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.