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Finding the Fourth Proportional to 251,411.27, 346,954.37 and 136,697.63

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Solution

The fourth proportional to 251,411.27, 346,954.37 and 136,697.63 is: 188,646.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,411.27 : 346,954.37 = 136,697.63 : x
  2. Step 2: Convert to fraction form
    251,411.27/346,954.37 = 136,697.63/x
  3. Step 3: Cross multiply
    251,411.27x = 346,954.37 × 136,697.63
  4. Step 4: Simplify right side
    251,411.27x = 47,427,837,678.88
  5. Step 5: Solve for x
    x = 47,427,837,678.88/251,411.27
  6. Step 6: Final answer
    x = 188,646.43

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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.