Home / 251,318.60-346,815.78-138,138.92

Finding the Fourth Proportional to 251,318.60, 346,815.78 and 138,138.92

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Solution

The fourth proportional to 251,318.60, 346,815.78 and 138,138.92 is: 190,629.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,318.60 : 346,815.78 = 138,138.92 : x
  2. Step 2: Convert to fraction form
    251,318.60/346,815.78 = 138,138.92/x
  3. Step 3: Cross multiply
    251,318.60x = 346,815.78 × 138,138.92
  4. Step 4: Simplify right side
    251,318.60x = 47,908,757,288.16
  5. Step 5: Solve for x
    x = 47,908,757,288.16/251,318.60
  6. Step 6: Final answer
    x = 190,629.57

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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.