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Finding the Fourth Proportional to 251,283.69, 346,761.97 and 143,863.72

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Solution

The fourth proportional to 251,283.69, 346,761.97 and 143,863.72 is: 198,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,283.69 : 346,761.97 = 143,863.72 : x
  2. Step 2: Convert to fraction form
    251,283.69/346,761.97 = 143,863.72/x
  3. Step 3: Cross multiply
    251,283.69x = 346,761.97 × 143,863.72
  4. Step 4: Simplify right side
    251,283.69x = 49,886,465,732.16
  5. Step 5: Solve for x
    x = 49,886,465,732.16/251,283.69
  6. Step 6: Final answer
    x = 198,526.48

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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.