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Finding the Fourth Proportional to 251,957.66, 347,676.34 and 155,146

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Solution

The fourth proportional to 251,957.66, 347,676.34 and 155,146 is: 214,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,957.66 : 347,676.34 = 155,146 : x
  2. Step 2: Convert to fraction form
    251,957.66/347,676.34 = 155,146/x
  3. Step 3: Cross multiply
    251,957.66x = 347,676.34 × 155,146
  4. Step 4: Simplify right side
    251,957.66x = 53,940,593,445.64
  5. Step 5: Solve for x
    x = 53,940,593,445.64/251,957.66
  6. Step 6: Final answer
    x = 214,085.94

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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.