Home / 220,849.24-331,208.16-80,575

Finding the Fourth Proportional to 220,849.24, 331,208.16 and 80,575

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Solution

The fourth proportional to 220,849.24, 331,208.16 and 80,575 is: 120,838.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,849.24 : 331,208.16 = 80,575 : x
  2. Step 2: Convert to fraction form
    220,849.24/331,208.16 = 80,575/x
  3. Step 3: Cross multiply
    220,849.24x = 331,208.16 × 80,575
  4. Step 4: Simplify right side
    220,849.24x = 26,687,097,492.00
  5. Step 5: Solve for x
    x = 26,687,097,492.00/220,849.24
  6. Step 6: Final answer
    x = 120,838.53

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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.