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Finding the Fourth Proportional to 251,073.07, 346,479.71 and 136,350.81

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Solution

The fourth proportional to 251,073.07, 346,479.71 and 136,350.81 is: 188,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,073.07 : 346,479.71 = 136,350.81 : x
  2. Step 2: Convert to fraction form
    251,073.07/346,479.71 = 136,350.81/x
  3. Step 3: Cross multiply
    251,073.07x = 346,479.71 × 136,350.81
  4. Step 4: Simplify right side
    251,073.07x = 47,242,789,447.94
  5. Step 5: Solve for x
    x = 47,242,789,447.94/251,073.07
  6. Step 6: Final answer
    x = 188,163.51

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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.