Home / 204,652.37-307,027.71-78,290.55

Finding the Fourth Proportional to 204,652.37, 307,027.71 and 78,290.55

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Solution

The fourth proportional to 204,652.37, 307,027.71 and 78,290.55 is: 117,454.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,652.37 : 307,027.71 = 78,290.55 : x
  2. Step 2: Convert to fraction form
    204,652.37/307,027.71 = 78,290.55/x
  3. Step 3: Cross multiply
    204,652.37x = 307,027.71 × 78,290.55
  4. Step 4: Simplify right side
    204,652.37x = 24,037,366,354.55
  5. Step 5: Solve for x
    x = 24,037,366,354.55/204,652.37
  6. Step 6: Final answer
    x = 117,454.62

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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.