Home / 305,119.23-457,709.60-80,495.19

Finding the Fourth Proportional to 305,119.23, 457,709.60 and 80,495.19

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Solution

The fourth proportional to 305,119.23, 457,709.60 and 80,495.19 is: 120,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,119.23 : 457,709.60 = 80,495.19 : x
  2. Step 2: Convert to fraction form
    305,119.23/457,709.60 = 80,495.19/x
  3. Step 3: Cross multiply
    305,119.23x = 457,709.60 × 80,495.19
  4. Step 4: Simplify right side
    305,119.23x = 36,843,420,814.35
  5. Step 5: Solve for x
    x = 36,843,420,814.35/305,119.23
  6. Step 6: Final answer
    x = 120,750.90

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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.