Home / 316,361.28-436,578.60-173,121.35

Finding the Fourth Proportional to 316,361.28, 436,578.60 and 173,121.35

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Solution

The fourth proportional to 316,361.28, 436,578.60 and 173,121.35 is: 238,907.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,361.28 : 436,578.60 = 173,121.35 : x
  2. Step 2: Convert to fraction form
    316,361.28/436,578.60 = 173,121.35/x
  3. Step 3: Cross multiply
    316,361.28x = 436,578.60 × 173,121.35
  4. Step 4: Simplify right side
    316,361.28x = 75,581,074,430.22
  5. Step 5: Solve for x
    x = 75,581,074,430.22/316,361.28
  6. Step 6: Final answer
    x = 238,907.47

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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.