Home / 316,028.72-436,116.66-172,787.24

Finding the Fourth Proportional to 316,028.72, 436,116.66 and 172,787.24

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Solution

The fourth proportional to 316,028.72, 436,116.66 and 172,787.24 is: 238,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,028.72 : 436,116.66 = 172,787.24 : x
  2. Step 2: Convert to fraction form
    316,028.72/436,116.66 = 172,787.24/x
  3. Step 3: Cross multiply
    316,028.72x = 436,116.66 × 172,787.24
  4. Step 4: Simplify right side
    316,028.72x = 75,355,394,441.76
  5. Step 5: Solve for x
    x = 75,355,394,441.76/316,028.72
  6. Step 6: Final answer
    x = 238,444.76

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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.