Home / 384,905.44-531,160.09-212,819.03

Finding the Fourth Proportional to 384,905.44, 531,160.09 and 212,819.03

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Solution

The fourth proportional to 384,905.44, 531,160.09 and 212,819.03 is: 293,685.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,905.44 : 531,160.09 = 212,819.03 : x
  2. Step 2: Convert to fraction form
    384,905.44/531,160.09 = 212,819.03/x
  3. Step 3: Cross multiply
    384,905.44x = 531,160.09 × 212,819.03
  4. Step 4: Simplify right side
    384,905.44x = 113,040,975,128.51
  5. Step 5: Solve for x
    x = 113,040,975,128.51/384,905.44
  6. Step 6: Final answer
    x = 293,685.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.