Home / 316,664.46-436,987.17-173,420.82

Finding the Fourth Proportional to 316,664.46, 436,987.17 and 173,420.82

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Solution

The fourth proportional to 316,664.46, 436,987.17 and 173,420.82 is: 239,315.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,664.46 : 436,987.17 = 173,420.82 : x
  2. Step 2: Convert to fraction form
    316,664.46/436,987.17 = 173,420.82/x
  3. Step 3: Cross multiply
    316,664.46x = 436,987.17 × 173,420.82
  4. Step 4: Simplify right side
    316,664.46x = 75,782,673,350.88
  5. Step 5: Solve for x
    x = 75,782,673,350.88/316,664.46
  6. Step 6: Final answer
    x = 239,315.37

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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.