Home / 220,748.72-331,172.44-80,507.34

Finding the Fourth Proportional to 220,748.72, 331,172.44 and 80,507.34

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Solution

The fourth proportional to 220,748.72, 331,172.44 and 80,507.34 is: 120,779.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,748.72 : 331,172.44 = 80,507.34 : x
  2. Step 2: Convert to fraction form
    220,748.72/331,172.44 = 80,507.34/x
  3. Step 3: Cross multiply
    220,748.72x = 331,172.44 × 80,507.34
  4. Step 4: Simplify right side
    220,748.72x = 26,661,812,225.71
  5. Step 5: Solve for x
    x = 26,661,812,225.71/220,748.72
  6. Step 6: Final answer
    x = 120,779.01

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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.