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Finding the Fourth Proportional to 258,646.54, 356,942.32 and 156,614.34

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Solution

The fourth proportional to 258,646.54, 356,942.32 and 156,614.34 is: 216,133.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,646.54 : 356,942.32 = 156,614.34 : x
  2. Step 2: Convert to fraction form
    258,646.54/356,942.32 = 156,614.34/x
  3. Step 3: Cross multiply
    258,646.54x = 356,942.32 × 156,614.34
  4. Step 4: Simplify right side
    258,646.54x = 55,902,284,240.64
  5. Step 5: Solve for x
    x = 55,902,284,240.64/258,646.54
  6. Step 6: Final answer
    x = 216,133.89

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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.