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Finding the Fourth Proportional to 172,228.90, 258,350.55 and 92,233.30

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Solution

The fourth proportional to 172,228.90, 258,350.55 and 92,233.30 is: 138,353.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,228.90 : 258,350.55 = 92,233.30 : x
  2. Step 2: Convert to fraction form
    172,228.90/258,350.55 = 92,233.30/x
  3. Step 3: Cross multiply
    172,228.90x = 258,350.55 × 92,233.30
  4. Step 4: Simplify right side
    172,228.90x = 23,828,523,783.32
  5. Step 5: Solve for x
    x = 23,828,523,783.32/172,228.90
  6. Step 6: Final answer
    x = 138,353.81

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.