Home / 320,222.46-480,634.65-162,564.06

Finding the Fourth Proportional to 320,222.46, 480,634.65 and 162,564.06

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Solution

The fourth proportional to 320,222.46, 480,634.65 and 162,564.06 is: 243,998.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,222.46 : 480,634.65 = 162,564.06 : x
  2. Step 2: Convert to fraction form
    320,222.46/480,634.65 = 162,564.06/x
  3. Step 3: Cross multiply
    320,222.46x = 480,634.65 × 162,564.06
  4. Step 4: Simplify right side
    320,222.46x = 78,133,920,080.68
  5. Step 5: Solve for x
    x = 78,133,920,080.68/320,222.46
  6. Step 6: Final answer
    x = 243,998.88

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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.