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Finding the Fourth Proportional to 491,168.16, 677,811.06 and 276,308.39

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Solution

The fourth proportional to 491,168.16, 677,811.06 and 276,308.39 is: 381,305.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,168.16 : 677,811.06 = 276,308.39 : x
  2. Step 2: Convert to fraction form
    491,168.16/677,811.06 = 276,308.39/x
  3. Step 3: Cross multiply
    491,168.16x = 677,811.06 × 276,308.39
  4. Step 4: Simplify right side
    491,168.16x = 187,284,884,407.32
  5. Step 5: Solve for x
    x = 187,284,884,407.32/491,168.16
  6. Step 6: Final answer
    x = 381,305.02

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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.