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Finding the Fourth Proportional to 258,452.40, 356,612 and 151,001.64

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Solution

The fourth proportional to 258,452.40, 356,612 and 151,001.64 is: 208,351.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,452.40 : 356,612 = 151,001.64 : x
  2. Step 2: Convert to fraction form
    258,452.40/356,612 = 151,001.64/x
  3. Step 3: Cross multiply
    258,452.40x = 356,612 × 151,001.64
  4. Step 4: Simplify right side
    258,452.40x = 53,848,996,843.68
  5. Step 5: Solve for x
    x = 53,848,996,843.68/258,452.40
  6. Step 6: Final answer
    x = 208,351.70

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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.