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Finding the Fourth Proportional to 251,451.71, 346,918.43 and 142,544.37

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Solution

The fourth proportional to 251,451.71, 346,918.43 and 142,544.37 is: 196,663.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,451.71 : 346,918.43 = 142,544.37 : x
  2. Step 2: Convert to fraction form
    251,451.71/346,918.43 = 142,544.37/x
  3. Step 3: Cross multiply
    251,451.71x = 346,918.43 × 142,544.37
  4. Step 4: Simplify right side
    251,451.71x = 49,451,269,045.74
  5. Step 5: Solve for x
    x = 49,451,269,045.74/251,451.71
  6. Step 6: Final answer
    x = 196,663.09

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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.