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Finding the Fourth Proportional to 491,168.68, 677,806.02 and 276,308.68

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Solution

The fourth proportional to 491,168.68, 677,806.02 and 276,308.68 is: 381,302.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,168.68 : 677,806.02 = 276,308.68 : x
  2. Step 2: Convert to fraction form
    491,168.68/677,806.02 = 276,308.68/x
  3. Step 3: Cross multiply
    491,168.68x = 677,806.02 × 276,308.68
  4. Step 4: Simplify right side
    491,168.68x = 187,283,686,682.25
  5. Step 5: Solve for x
    x = 187,283,686,682.25/491,168.68
  6. Step 6: Final answer
    x = 381,302.18

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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.