Home / 243,076.72-335,339.07-231,820.50

Finding the Fourth Proportional to 243,076.72, 335,339.07 and 231,820.50

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Solution

The fourth proportional to 243,076.72, 335,339.07 and 231,820.50 is: 319,810.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,076.72 : 335,339.07 = 231,820.50 : x
  2. Step 2: Convert to fraction form
    243,076.72/335,339.07 = 231,820.50/x
  3. Step 3: Cross multiply
    243,076.72x = 335,339.07 × 231,820.50
  4. Step 4: Simplify right side
    243,076.72x = 77,738,470,876.94
  5. Step 5: Solve for x
    x = 77,738,470,876.94/243,076.72
  6. Step 6: Final answer
    x = 319,810.43

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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.