Home / 290,575.47-436,519.34-172,324.38

Finding the Fourth Proportional to 290,575.47, 436,519.34 and 172,324.38

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Solution

The fourth proportional to 290,575.47, 436,519.34 and 172,324.38 is: 258,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,575.47 : 436,519.34 = 172,324.38 : x
  2. Step 2: Convert to fraction form
    290,575.47/436,519.34 = 172,324.38/x
  3. Step 3: Cross multiply
    290,575.47x = 436,519.34 × 172,324.38
  4. Step 4: Simplify right side
    290,575.47x = 75,222,923,761.89
  5. Step 5: Solve for x
    x = 75,222,923,761.89/290,575.47
  6. Step 6: Final answer
    x = 258,875.68

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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.