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Finding the Fourth Proportional to 251,062.60, 346,468.74 and 137,887.72

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Solution

The fourth proportional to 251,062.60, 346,468.74 and 137,887.72 is: 190,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,062.60 : 346,468.74 = 137,887.72 : x
  2. Step 2: Convert to fraction form
    251,062.60/346,468.74 = 137,887.72/x
  3. Step 3: Cross multiply
    251,062.60x = 346,468.74 × 137,887.72
  4. Step 4: Simplify right side
    251,062.60x = 47,773,784,609.87
  5. Step 5: Solve for x
    x = 47,773,784,609.87/251,062.60
  6. Step 6: Final answer
    x = 190,286.35

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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.