Home / 438,938.48-658,684.49-172,664.39

Finding the Fourth Proportional to 438,938.48, 658,684.49 and 172,664.39

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Solution

The fourth proportional to 438,938.48, 658,684.49 and 172,664.39 is: 259,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,938.48 : 658,684.49 = 172,664.39 : x
  2. Step 2: Convert to fraction form
    438,938.48/658,684.49 = 172,664.39/x
  3. Step 3: Cross multiply
    438,938.48x = 658,684.49 × 172,664.39
  4. Step 4: Simplify right side
    438,938.48x = 113,731,355,668.31
  5. Step 5: Solve for x
    x = 113,731,355,668.31/438,938.48
  6. Step 6: Final answer
    x = 259,105.46

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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.