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Finding the Fourth Proportional to 251,230.32, 346,693.92 and 138,050.64

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Solution

The fourth proportional to 251,230.32, 346,693.92 and 138,050.64 is: 190,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,230.32 : 346,693.92 = 138,050.64 : x
  2. Step 2: Convert to fraction form
    251,230.32/346,693.92 = 138,050.64/x
  3. Step 3: Cross multiply
    251,230.32x = 346,693.92 × 138,050.64
  4. Step 4: Simplify right side
    251,230.32x = 47,861,317,540.11
  5. Step 5: Solve for x
    x = 47,861,317,540.11/251,230.32
  6. Step 6: Final answer
    x = 190,507.73

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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.