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Finding the Fourth Proportional to 234,512.47, 352,239.38 and 139,927.20

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Solution

The fourth proportional to 234,512.47, 352,239.38 and 139,927.20 is: 210,171.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,512.47 : 352,239.38 = 139,927.20 : x
  2. Step 2: Convert to fraction form
    234,512.47/352,239.38 = 139,927.20/x
  3. Step 3: Cross multiply
    234,512.47x = 352,239.38 × 139,927.20
  4. Step 4: Simplify right side
    234,512.47x = 49,287,869,464.42
  5. Step 5: Solve for x
    x = 49,287,869,464.42/234,512.47
  6. Step 6: Final answer
    x = 210,171.64

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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.