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Finding the Fourth Proportional to 268,772.65, 403,408.42 and 135,746.35

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Solution

The fourth proportional to 268,772.65, 403,408.42 and 135,746.35 is: 203,745.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,772.65 : 403,408.42 = 135,746.35 : x
  2. Step 2: Convert to fraction form
    268,772.65/403,408.42 = 135,746.35/x
  3. Step 3: Cross multiply
    268,772.65x = 403,408.42 × 135,746.35
  4. Step 4: Simplify right side
    268,772.65x = 54,761,219,226.38
  5. Step 5: Solve for x
    x = 54,761,219,226.38/268,772.65
  6. Step 6: Final answer
    x = 203,745.51

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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.