Home / 268,800.91-403,450.43-135,774.40

Finding the Fourth Proportional to 268,800.91, 403,450.43 and 135,774.40

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Solution

The fourth proportional to 268,800.91, 403,450.43 and 135,774.40 is: 203,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,800.91 : 403,450.43 = 135,774.40 : x
  2. Step 2: Convert to fraction form
    268,800.91/403,450.43 = 135,774.40/x
  3. Step 3: Cross multiply
    268,800.91x = 403,450.43 × 135,774.40
  4. Step 4: Simplify right side
    268,800.91x = 54,778,240,062.99
  5. Step 5: Solve for x
    x = 54,778,240,062.99/268,800.91
  6. Step 6: Final answer
    x = 203,787.41

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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.