Home / 204,655.82-307,029.69-78,292.58

Finding the Fourth Proportional to 204,655.82, 307,029.69 and 78,292.58

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Solution

The fourth proportional to 204,655.82, 307,029.69 and 78,292.58 is: 117,456.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,655.82 : 307,029.69 = 78,292.58 : x
  2. Step 2: Convert to fraction form
    204,655.82/307,029.69 = 78,292.58/x
  3. Step 3: Cross multiply
    204,655.82x = 307,029.69 × 78,292.58
  4. Step 4: Simplify right side
    204,655.82x = 24,038,145,031.55
  5. Step 5: Solve for x
    x = 24,038,145,031.55/204,655.82
  6. Step 6: Final answer
    x = 117,456.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.