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Finding the Fourth Proportional to 397,046.40, 595,441.62 and 130,743.54

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Solution

The fourth proportional to 397,046.40, 595,441.62 and 130,743.54 is: 196,073.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,046.40 : 595,441.62 = 130,743.54 : x
  2. Step 2: Convert to fraction form
    397,046.40/595,441.62 = 130,743.54/x
  3. Step 3: Cross multiply
    397,046.40x = 595,441.62 × 130,743.54
  4. Step 4: Simplify right side
    397,046.40x = 77,850,145,262.13
  5. Step 5: Solve for x
    x = 77,850,145,262.13/397,046.40
  6. Step 6: Final answer
    x = 196,073.17

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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.