Home / 316,361.69-436,579.16-173,121.74

Finding the Fourth Proportional to 316,361.69, 436,579.16 and 173,121.74

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Solution

The fourth proportional to 316,361.69, 436,579.16 and 173,121.74 is: 238,908.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,361.69 : 436,579.16 = 173,121.74 : x
  2. Step 2: Convert to fraction form
    316,361.69/436,579.16 = 173,121.74/x
  3. Step 3: Cross multiply
    316,361.69x = 436,579.16 × 173,121.74
  4. Step 4: Simplify right side
    316,361.69x = 75,581,342,961.33
  5. Step 5: Solve for x
    x = 75,581,342,961.33/316,361.69
  6. Step 6: Final answer
    x = 238,908.01

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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.