Home / 319,204.45-478,767.66-82,527.31

Finding the Fourth Proportional to 319,204.45, 478,767.66 and 82,527.31

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Solution

The fourth proportional to 319,204.45, 478,767.66 and 82,527.31 is: 123,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,204.45 : 478,767.66 = 82,527.31 : x
  2. Step 2: Convert to fraction form
    319,204.45/478,767.66 = 82,527.31/x
  3. Step 3: Cross multiply
    319,204.45x = 478,767.66 × 82,527.31
  4. Step 4: Simplify right side
    319,204.45x = 39,511,407,094.79
  5. Step 5: Solve for x
    x = 39,511,407,094.79/319,204.45
  6. Step 6: Final answer
    x = 123,780.88

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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.