Home / 309,528.48-427,167.09-173,606.03

Finding the Fourth Proportional to 309,528.48, 427,167.09 and 173,606.03

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Solution

The fourth proportional to 309,528.48, 427,167.09 and 173,606.03 is: 239,586.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,528.48 : 427,167.09 = 173,606.03 : x
  2. Step 2: Convert to fraction form
    309,528.48/427,167.09 = 173,606.03/x
  3. Step 3: Cross multiply
    309,528.48x = 427,167.09 × 173,606.03
  4. Step 4: Simplify right side
    309,528.48x = 74,158,780,505.72
  5. Step 5: Solve for x
    x = 74,158,780,505.72/309,528.48
  6. Step 6: Final answer
    x = 239,586.29

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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.