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Finding the Fourth Proportional to 251,371.86, 346,895.42 and 136,650.72

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Solution

The fourth proportional to 251,371.86, 346,895.42 and 136,650.72 is: 188,579.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,371.86 : 346,895.42 = 136,650.72 : x
  2. Step 2: Convert to fraction form
    251,371.86/346,895.42 = 136,650.72/x
  3. Step 3: Cross multiply
    251,371.86x = 346,895.42 × 136,650.72
  4. Step 4: Simplify right side
    251,371.86x = 47,403,508,907.70
  5. Step 5: Solve for x
    x = 47,403,508,907.70/251,371.86
  6. Step 6: Final answer
    x = 188,579.22

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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.