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Finding the Fourth Proportional to 234,820.78, 324,052.47 and 127,390.82

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Solution

The fourth proportional to 234,820.78, 324,052.47 and 127,390.82 is: 175,799.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,820.78 : 324,052.47 = 127,390.82 : x
  2. Step 2: Convert to fraction form
    234,820.78/324,052.47 = 127,390.82/x
  3. Step 3: Cross multiply
    234,820.78x = 324,052.47 × 127,390.82
  4. Step 4: Simplify right side
    234,820.78x = 41,281,308,256.06
  5. Step 5: Solve for x
    x = 41,281,308,256.06/234,820.78
  6. Step 6: Final answer
    x = 175,799.21

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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.