Home / 215,288.21-322,931.99-73,148.27

Finding the Fourth Proportional to 215,288.21, 322,931.99 and 73,148.27

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Solution

The fourth proportional to 215,288.21, 322,931.99 and 73,148.27 is: 109,722.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,288.21 : 322,931.99 = 73,148.27 : x
  2. Step 2: Convert to fraction form
    215,288.21/322,931.99 = 73,148.27/x
  3. Step 3: Cross multiply
    215,288.21x = 322,931.99 × 73,148.27
  4. Step 4: Simplify right side
    215,288.21x = 23,621,914,415.76
  5. Step 5: Solve for x
    x = 23,621,914,415.76/215,288.21
  6. Step 6: Final answer
    x = 109,722.29

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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.