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Finding the Fourth Proportional to 307,190.88, 423,932.40 and 179,854.56

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Solution

The fourth proportional to 307,190.88, 423,932.40 and 179,854.56 is: 248,204.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,190.88 : 423,932.40 = 179,854.56 : x
  2. Step 2: Convert to fraction form
    307,190.88/423,932.40 = 179,854.56/x
  3. Step 3: Cross multiply
    307,190.88x = 423,932.40 × 179,854.56
  4. Step 4: Simplify right side
    307,190.88x = 76,246,175,271.74
  5. Step 5: Solve for x
    x = 76,246,175,271.74/307,190.88
  6. Step 6: Final answer
    x = 248,204.55

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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.