Home / 234,825.40-352,287.78-77,040.64

Finding the Fourth Proportional to 234,825.40, 352,287.78 and 77,040.64

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Solution

The fourth proportional to 234,825.40, 352,287.78 and 77,040.64 is: 115,577.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,825.40 : 352,287.78 = 77,040.64 : x
  2. Step 2: Convert to fraction form
    234,825.40/352,287.78 = 77,040.64/x
  3. Step 3: Cross multiply
    234,825.40x = 352,287.78 × 77,040.64
  4. Step 4: Simplify right side
    234,825.40x = 27,140,476,035.38
  5. Step 5: Solve for x
    x = 27,140,476,035.38/234,825.40
  6. Step 6: Final answer
    x = 115,577.26

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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.