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Finding the Fourth Proportional to 251,412.30, 346,954.86 and 136,697.46

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Solution

The fourth proportional to 251,412.30, 346,954.86 and 136,697.46 is: 188,645.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,412.30 : 346,954.86 = 136,697.46 : x
  2. Step 2: Convert to fraction form
    251,412.30/346,954.86 = 136,697.46/x
  3. Step 3: Cross multiply
    251,412.30x = 346,954.86 × 136,697.46
  4. Step 4: Simplify right side
    251,412.30x = 47,427,848,096.66
  5. Step 5: Solve for x
    x = 47,427,848,096.66/251,412.30
  6. Step 6: Final answer
    x = 188,645.70

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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.