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Finding the Fourth Proportional to 251,251.83, 346,908.54 and 154,585.76

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Solution

The fourth proportional to 251,251.83, 346,908.54 and 154,585.76 is: 213,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,251.83 : 346,908.54 = 154,585.76 : x
  2. Step 2: Convert to fraction form
    251,251.83/346,908.54 = 154,585.76/x
  3. Step 3: Cross multiply
    251,251.83x = 346,908.54 × 154,585.76
  4. Step 4: Simplify right side
    251,251.83x = 53,627,118,571.85
  5. Step 5: Solve for x
    x = 53,627,118,571.85/251,251.83
  6. Step 6: Final answer
    x = 213,439.71

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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.